'Discovered in 1928, it kills gonococci, meningococci & streptococci'
Penicillin
HEALTH & MEDICINE: Discovered in 1928, it kills gonococci, meningococci & streptococci
Discovered in 1928, it kills gonococci, meningococci & streptococci
Discovered in 1928, it kills gonococci, meningococci & streptococci
HEALTH & MEDICINE
Penicillin
HEALTH & MEDICINE