much of the choline accumulated by the mammary gland ( in the presence of endogenous concentrations of choline ) remained in the form of choline ( 50 +/- 1.2 % ) , phosphatidylcholine ( 12 +/- 2.3 % ) , lysophosphatidylcholine ( 0.1 +/- 0.03 % ) , betaine ( 7 +/- 0.3 % and phosphocholine ( 6 +/- 0.5 % ) .
C0008405
choline
C0031716
phosphocholine