title: False-negative results in typing of group B streptococci by the standard lancefield antigen extraction method.
authors: H-C
authors: HC
authors: Slotved
authors: S
authors: S
authors: Sauer
authors: H B
authors: HB
authors: Konradsen
mesh_terms: D000942:Antigens, Bacterial / Q000302:isolation & purification*; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D011251:Pregnancy Complications, Infectious / Q000175:diagnosis / Q000382:microbiology; D012703:Serotyping / Q000379:methods; D013290:Streptococcal Infections / Q000175:diagnosis; D013292:Streptococcus agalactiae / Q000145:classification* / Q000302:isolation & purification
chemical_list: D000942:Antigens, Bacterial