from the ratios of alveolar wash-associated natural to synthetic phosphatidylcholine specific activities and from similar ratios obtained in 30 additional rabbits using [ 14c ] choline-labeled natural surfactant and [ 3h ] choline-labeled dipalmitoylphosphatidylcholine , we showed that phosphatidylcholine was reutilized intact rather than as component parts .
C0000039
dipalmitoylphosphatidylcholine
C1959616
phosphatidylcholine