title: Studies on the suitability of blood-free media for the enumeration of clostridia.
mesh_terms: D000362:Agar; D001431:Bacteriological Techniques / Q000592:standards*; D001769:Blood; D003013:Clostridium / Q000302:isolation & purification*; D003470:Culture Media; D003545:Cysteine; D006418:Heme; D010461:Peptones
chemical_list: D003470:Culture Media; D010461:Peptones; D006418:Heme; D000362:Agar; D003545:Cysteine