545,448 WENNERGREN MARGARETA Perinatal risk factors : with special reference to intrauterine growth retardation and neonatal respiratory adaptation : [thesis] / by Margareta Wennergren. — Umea : [Publ. by the Scandinavian Association of Obstetricians and Gynecologists], 1986. — 51 s. : il ; 25 cm (Acta Obstetricia et Gynecologica Scandinavica, ISSN 0300-8835 ; Suppl. 135) ISBN 91-7626-064-X