1. Gestational age assessment. I. Analysis of individual clinical observations;Andersen;Am. J. Obstet. Gynecol.,1981
2. Correlation between amniotic fluid optical den sity, L/S ratio, and fetal pulmonary maturity;Arias;Obstet. Gynecol.,1978
3. The Lung and Its Disorders in the New born Infant;Avery,1981
4. Surface properties in relation to atelectasis and hyaline membrane disease;Avery;Am. J. Dis. Child.,1959
5. Formation of pulmonary surfactant in whole lung and in isolated type-II alveolar cells;Batenburg,1979