NLM Digital Collections

Search

Start Over Subjects Penicillins -- therapeutic use ✖Remove constraint Subjects: Penicillins -- therapeutic use Titles Penicillin and other antibiotics produced by microorganisms ✖Remove constraint Titles: Penicillin and other antibiotics produced by microorganisms Publication Year 1943 ✖Remove constraint Publication Year: 1943

Refine by:

  • Penicillin and other antibiotics produced by microorganisms1