title: The organization of the cell wall and cross wall of Staphylococcus aureus after ultracryotomy and freeze-etching.
mesh_terms: D002473:Cell Wall / Q000187:drug effects / Q000648:ultrastructure; D005613:Freeze Etching; D005629:Frozen Sections / Q000379:methods; D010400:Penicillin G / Q000494:pharmacology; D013211:Staphylococcus aureus / Q000187:drug effects / Q000648:ultrastructure*
chemical_list: D010400:Penicillin G