The accident that changed the world - Allison Ramsey and Mary Staicu
0
0
728 צפיות·
11/17/23
ב
Life
Learn how Alexander Fleming discovered penicillin, and how the antibiotic has changed medicine and the treatment of infections. -- In 1928, scientist Alexander Fleming returned to his lab...
להראות יותר
0 הערות
sort מיין לפי
