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David Sable

@dbsable.bsky.social
928 followers 657 following 65 posts

Doctor/teacher/writer. Ob/gyn and IVF doc. Roadie for Priya Mayadas. Adjunct @Columbia dbsable.substack.com

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David Sable @dbsable.bsky.social · 19/06/2026
On universal access to fertility care: affordability is just the start. kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
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David Sable @dbsable.bsky.social · 11/05/2026
An REI on Mother’s Day open.substack.com/pub/dbsable/...
open.substack.com
What Amy Tan and The Joy Luck Club Taught Me About Infertility
A Mother's Day Story for Those Midjourney
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David Sable @dbsable.bsky.social · 24/04/2025
What a privilege to be asked to contribute to the Reproductive BioMedicine Online special issue RBMO @25. My article, "How will IVF be delivered in 25 years’ time?" is up -- no paywall or registration needed. Comments and abuse welcomed. kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
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David Sable @dbsable.bsky.social · 28/02/2025
Good weekend all
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David Sable @dbsable.bsky.social · 22/02/2025
Still waters
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David Sable @dbsable.bsky.social · 03/02/2025
a bunch of my students were writing for TTR. Year in and year out, one of the least promotional but most substantive leaders in #biotech.
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David Sable @dbsable.bsky.social · 03/02/2025
the industry, his path, his approach to storytelling and how to listen to others to my Columbia University Entrepreneurship in Biotechnology class; fast forward a few months and...
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David Sable @dbsable.bsky.social · 03/02/2025
A huge shout-out to the incomparable Luke Timmerman on the 10th anniversary of the launch of the Timmerman Report. I have been a loyal subscriber ever since. A few years back, Luke gave an exceptional, freewheeling talk about...
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David Sable @dbsable.bsky.social · 22/01/2025
Skating away on the thin ice of a new day.
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David Sable @dbsable.bsky.social · 11/01/2025
25!!! HBD to absolutely the world’s best daughter.
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David Sable @dbsable.bsky.social · 02/01/2025
What was the breakdown between pre and post menopausal women? May be helpful.
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David Sable @dbsable.bsky.social · 30/12/2024
Quite the New York sunset.
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David Sable @dbsable.bsky.social · 26/12/2024
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David Sable @dbsable.bsky.social · 26/12/2024
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David Sable @dbsable.bsky.social · 26/12/2024
More of a Tangled Up than a Rhapsody In. (At the Guggenheim)
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David Sable @dbsable.bsky.social · 25/12/2024
Happy holidays. Wishing you a safe journey searching for the lost empire of cool.
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David Sable @dbsable.bsky.social · 21/12/2024
Nature imitates Rothko: winter solstice on the Upper West Side
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David Sable @dbsable.bsky.social · 13/12/2024
The faces behind the Sable - Sirus criteria for value assessment in IVF innovation. (and HBD Abigail Sirus!)
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David Sable @dbsable.bsky.social · 12/12/2024
My Unofficial Investor’s Letter, December 2024 The fund had a pretty good year. I’ll get to business in a bit. But first a story. medium.com/@dbsable/les...
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David Sable @dbsable.bsky.social · 01/12/2024
“When you perform a vaginal delivery , there is a very brief moment, right after the baby’s head emerges, where you and the baby are the only people in the world.” dbsable.substack.com/p/i-was-an-o... #ivf #REI #embryology #obgyn
dbsable.substack.com
I Was An Obstetrician Once
You have to be an obstetrician before you can be an IVF doc
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David Sable @dbsable.bsky.social · 30/11/2024
dbsable.substack.com/p/on-the-tik... #ivf
dbsable.substack.com
On The Tik-Tokization Of IVF
We've seen it before, and it works
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David Sable @dbsable.bsky.social · 30/11/2024
dbsable.substack.com/p/four-visio... #ivf
dbsable.substack.com
Four Visions of the Future of US IVF
Network and Do-It-Yourself, Academic and Allocator
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David Sable @dbsable.bsky.social · 30/11/2024
go.bsky.app/EC8dCFW
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David Sable @dbsable.bsky.social · 26/11/2024
Anything that the parties agree to is acceptable. The investors will internally model a conversion into equity at varying later valuations and calculate their margin of safety from that. In the meantime they hold debt and can recover any liquifiale assets in the worst case scenario.
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David Sable @dbsable.bsky.social · 26/11/2024
A founder asks: How do I sell a piece of my company when I don’t know what its worth? entrepreneurshipinbiotechnology.substack.com/p/if-you-und...
entrepreneurshipinbiotechnology.substack.com
The Virtuous Seed Stage Term Sheet
Entrepreneurship in Biotechnology Shadow Curriculum week 3
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David Sable @dbsable.bsky.social · 25/11/2024
“When pitching, be acutely aware of the clarity of your language. Your toolkit is filled with words. Use that toolkit thoughtfully. You are creating something novel. It is intuitive to you. It will not be intuitive to others.” entrepreneurshipinbiotechnology.substack.com/p/the-existe...
entrepreneurshipinbiotechnology.substack.com
The Existential Pitch
Basic Science of Entrepreneurship in Biotechnology, Part 1
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David Sable @dbsable.bsky.social · 24/11/2024
That’s a start — more to come!
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David Sable @dbsable.bsky.social · 24/11/2024
Carl Zimmer’s book on heredity is a great genetics primer. www.penguinrandomhouse.com/books/536455...
penguinrandomhouse.com
She Has Her Mother's Laugh by Carl Zimmer: 9781101984611 | PenguinRandomHouse.com: Books
2019 PEN/E.O. Wilson Literary Science Writing Award Finalist "Science book of the year"—The Guardian One of New York Times 100 Notable Books for 2018 One of Publishers Weekly's Top Ten Books of...
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David Sable @dbsable.bsky.social · 24/11/2024
The Atlantic has outstanding science writing. I assigned several of Ed Yong’s pieces when he was there. www.theatlantic.com/author/ed-yo...
theatlantic.com
Ed Yong, The Atlantic
Ed Yong is a former staff writer at The Atlantic. He won the Pulitzer Prize for Explanatory Reporting for his coverage of the COVID-19 pandemic.
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David Sable @dbsable.bsky.social · 24/11/2024
Bruce Booth, a partner at Atlas Venture, writes an excellent blog about drug development and science: lifescivc.com Bruce usually includes a good data set with each article. @LifeSciVC
lifescivc.com
LifeSciVC
Bruce Booth, partner at Atlas Venture, blogs on all facets of early stage biotech.
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David Sable @dbsable.bsky.social · 24/11/2024
Another really good resource for the biotech industry and the science behind it is The Timmerman Report (subscription, worth it) timmermanreport.com
timmermanreport.com
TimmermanReport.com - Your Edge In Biotech
Timmerman Report is an independently-owned subscription publication that provides timely, in-depth biotech news and analysis.
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David Sable @dbsable.bsky.social · 24/11/2024
If you end up doing a lot of biotech, there is a good book on biotech forecasting and modeling: @Frank_S_David amazon.com/Pharmagellan-G… (Self promotion disclosure: I wrote the foreword.)
amazon.com
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David Sable @dbsable.bsky.social · 24/11/2024
Two more business of biotech books that are really good: Peter Kolchinsky (PM for RA Capital) The Great American Drug Deal peterkolchinsky.com @PeterKolchinsky (You can read much of it on his medium posts: medium.com/the-biotech-so…
peterkolchinsky.com
Peter Kolchinsky
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David Sable @dbsable.bsky.social · 24/11/2024
Not as much science, but Elisabeth Rosenthal’s book American Sickness gives a really good (and depressing) overview of the US healthcare system. @RosenthalHealth t.co/TOUETFhIqk
t.co
https://www.amazon.com/American-Sickness-Healthcare-Became-Business/dp/1594206759
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David Sable @dbsable.bsky.social · 24/11/2024
There is a lot of good science combined with an excellent overview of the drug industry in Thomas Hager’s Ten Drugs www.amazon.com/Ten-Drugs-Po...
amazon.com
Ten Drugs: How Plants, Powders, and Pills Have Shaped the History of Medicine
Ten Drugs: How Plants, Powders, and Pills Have Shaped the History of Medicine [Hager, Thomas] on Amazon.com. *FREE* shipping on qualifying offers. Ten Drugs: How Plants, Powders, and Pills Have Shaped the History of Medicine
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David Sable @dbsable.bsky.social · 24/11/2024
A little more dense, but very readable, are Siddartha Mukherjee’s books on cancer, genetics, and cell biology. Sid was a guest speaker in class in 2023 @DrSidMukherjee siddharthamukherjee.com
siddharthamukherjee.com
Siddhartha Mukherjee
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David Sable @dbsable.bsky.social · 24/11/2024
Anything Atul Gawande writes is great (his column in The New Yorker is a must read.) My personal favorites for getting up to speed on healthcare and science: amazon.com/Better-Surgeon… amazon.com/Complications- 
amazon.com
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David Sable @dbsable.bsky.social · 24/11/2024
Biology: I would not spend too much time on basic bio, instead learning it in the context of applied biology ie medicine and biotechnology. The background science will sink in within the context of the stories and case studies. Some good sources:
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David Sable @dbsable.bsky.social · 24/11/2024
Dr. Lowe is brilliant and while some of the pieces are really dense and jargon-y, a lot of them are really accessible. The vocabulary eventually sinks in.
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David Sable @dbsable.bsky.social · 24/11/2024
For basic science, you may want to read small amounts regularly rather than try to learn the vocabulary all at once. Chemistry: A personal favorite science resource that I use is Derek Lowe’s blog “In The Pipeline” in Science. blogs.sciencemag.org/pipeline/
blogs.sciencemag.org
Science | AAAS
Science/AAAS peer-reviewed journals deliver impactful research, daily news, expert commentary, and career resources.
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David Sable @dbsable.bsky.social · 24/11/2024
Charles Wheelan's Naked Statistics (easy to read) amazon.com/Naked-Statisti… Harvey Motulsky’s Intuitive Biostatistics (denser and not so intuitive at times — free download below) academia.edu/40433614/Intui 
amazon.com
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David Sable @dbsable.bsky.social · 24/11/2024
Brings us to statistics — to me the single most important skill for really understanding innovation in healthcare A could of good resources, one general and one specific to healthcare / biology:
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David Sable @dbsable.bsky.social · 24/11/2024
Back to data: if you are given raw numbers, convert them to %’s. If you get %, find out the # of people in the trial and convert it to numbers. If they both look impressive — great. If one does not believe the one that is least impressive. @Columbia students know this one well.
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David Sable @dbsable.bsky.social · 24/11/2024
For med devices: they are almost all a combination of an energy source and a delivery system. To understand them quickly break it down into the two and figure out how novel one or the other is.
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David Sable @dbsable.bsky.social · 24/11/2024
Neurology and psychiatry are minefields for data — nature did such a good job protecting our central nervous systems that they are extremely difficult to study. Women’s health too!
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David Sable @dbsable.bsky.social · 24/11/2024
2) related to #1 — over time you’ll get a feel for how reliable the measurements that make up the data readouts are. Specific easily reproducible numbers (weight, % survival) are much more reliable than arbitrarily made up “scores.”
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David Sable @dbsable.bsky.social · 24/11/2024
1) look at the name of the disease — is it highly specific? (“TRK-fusion positive tumor”) or a random label (“Alzheimer’s Disease”). The more specific the understanding of the disease — especially on a genetic level — the more likely that things will work.
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David Sable @dbsable.bsky.social · 24/11/2024
My advice to graduates of my class who still (!) insist on going into #biotech investment banking First, a few tips re science/medical data:
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David Sable @dbsable.bsky.social · 24/11/2024
Room for a teacher in here?
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David Sable @dbsable.bsky.social · 24/11/2024
Don't Make Sh@% Up. Biology Always Wins ...and Other Rules of Entrepreneurship in Biotechnology entrepreneurshipinbiotechnology.substack.com/p/dont-make-...
entrepreneurshipinbiotechnology.substack.com
Don't Make Sh@% Up. Biology Always Wins
...and Other Rules of Entrepreneurship in Biotechnology
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