552,276 HEIKKINEN TERHO Development and prevention of acute otitis media in children : [thesis] / by Terho Heikkinen ; [from the Department of Pediatrics, University of Turku, Turku, Finland]. - Turku : Turun Yliopisto, 1994. - 89, [40] s. : wykr. ; 25 cm (Annales Universitatis Turkuensis. Ser.D: Medica-Odontologica, ISSN 0355-9483 ; 156) Zawiera 5 prac współaut. ISBN 951-29-0325-3