as expected , the major disaturated species of amniotic fluid phosphatidylcholine , dipalmitoylphosphatidylcholine , and palmitoylmyristoylphosphatidylcholine increased with gestational age , whereas phosphatidylcholine species with 34 , 36 , and 38 carbon atoms in the acyl radicals decreased .
C0000039
dipalmitoylphosphatidylcholine
C1959616
phosphatidylcholine