Isolation of streptococci by the use of nutrient media containing thallium salts.
D019216:Metals, Heavy; D012492:Salts; D013290:Streptococcal Infections / Q000208:ethnology*; D013291:Streptococcus / Q000208:ethnology*; D013793:Thallium; D017540:Tunica Media
D019216:Metals, Heavy; D012492:Salts; D013793:Thallium
STREPTOCOCCI/culture