Toward optimization of therapy in the neonate.
D000667:Ampicillin / Q000008:administration & dosage* / Q000097:blood; D002701:Chloramphenicol / Q000008:administration & dosage* / Q000097:blood; D002851:Chromatography, High Pressure Liquid; D005865:Gestational Age; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases / Q000188:drug therapy*; D007235:Infant, Premature, Diseases / Q000188:drug therapy*; D007239:Infections / Q000188:drug therapy*; D007263:Infusions, Parenteral
D002701:Chloramphenicol; D000667:Ampicillin