title: Levels of penicillin in serum of newborn infants after single intramuscular doses of benzathine penicillin G.
mesh_terms: D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000188:drug therapy; D007273:Injections, Intramuscular; D010401:Penicillin G Benzathine / Q000008:administration & dosage* / Q000097:blood / Q000627:therapeutic use / Q000652:urine; D013290:Streptococcal Infections / Q000188:drug therapy
chemical_list: D010401:Penicillin G Benzathine