the alterations induced on the pool sizes of five phospholipid metabolites , glycerol 3-phosphorycholine , glycerol 3-phosphorylethanolamine , phosphorylcholine , sn-glycerol 3-phosphate , and choline were studied by nuclear magnetic resonance ( nmr ) spectroscopy in murine tumors injected with recombinant murine tumor necrosis factor ( tnf ) .
C0031716
phosphorylcholine
C0008405
choline