Journal article
BACTERIAL-COLONIZATION OF THE NASOPHARYNX PREDICTS VERY EARLY-ONSET AND PERSISTENCE OF OTITIS-MEDIA IN AUSTRALIAN ABORIGINAL INFANTS
AJ LEACH, JB BOSWELL, V ASCHE, TG NIENHUYS, JD MATHEWS
The Pediatric Infectious Disease Journal | LIPPINCOTT WILLIAMS & WILKINS | Published : 1994