Een nieuwe wetenschappelijke overzichtsstudie gepubliceerd met groeiend bewijs voor verklaring waarom klachten aanhouden na een virusinfectie

Air pollution fell substantially as the city restricted car traffic and made way for parks and bike lanes.

ALT: a group of people are riding bicycles on a dirt road

ALT: a woman with red hair says gij ziet er ni goe uit in a foreign language

ALT: a group of people are riding bicycles on a track and one of them has a smiley face on his head

ALT: a close up of a statue of yoda from star wars making a funny face .

ALT: a stuffed animal with bunny ears is standing at a podium with money falling around him and the words brrr on the bottom