539,296 BERGMAN BOINGE Beta-mimetics and the preterm neonatal lung. An experimental and clinical study. Goteborg 1981 /druk. :/ Gotab, Kungalv 80 s. 221, il. + wkł. s. nlb. 2 Akad. avhandling Univ. of Goteborg Dep. of Obstetrics and Gynecology and Dep. of Pharmacology