'During the decade, he discovered lysisine, an antibiotic enzyme, as well as penicillin'
Alexander Fleming
THE 1920S: During the decade, he discovered lysisine, an antibiotic enzyme, as well as penicillin
During the decade, he discovered lysisine, an antibiotic enzyme, as well as penicillin
During the decade, he discovered lysisine, an antibiotic enzyme, as well as penicillin
THE 1920S
Alexander Fleming
THE 1920S