1. Closure of the ductus arteriosus in premature infants by inhibition of prostaglandin synthesis;A, Heymann M.; M, Rudolph A.; H, Silverman N.;N Engl J Med,1976
2. Pharmacologic closure of patent ductus arteriosus in the premature infant;F, Friedman W.; J, Hirschklau M.; P, Printz M.; T, Pitlick P.; E, Kirkpatrick S.;N Engl J Med,1976
3. Letter: PDAs, prostaglandins, and RLF;0, Schrager G;Pediatrics,1978
4. History of oxygen therapy and retrolental fibroplasia;S, James L.; T, Lanman J.;Pediatrics,1976
5. A practical classification of newborn infants by weight and gestational age;Battaglia F C, Lubchenco L 0;J Pediatr; Clinical assessment of gestational age in the newborn infant,1967