THE BIOGENESIS OF CHOLINE AND METHIONINE METHYL GROUPS AND OF THE SERINE HYDROXYMETHYL GROUP FROM INTRAMOLECULARLY  LABELED FORMALDEHYDE-14C,D2.
D002247:Carbon Isotopes; D002794:Choline; D002845:Chromatography; D003401:Creatine; D003404:Creatinine; D003903:Deuterium; D005557:Formaldehyde; D005561:Formates; D008099:Liver; D008715:Methionine / Q000031:analogs & derivatives; D011506:Proteins / Q000378:metabolism*; D051381:Rats; D012106:Research; D012694:Serine; D014556:Urine
D002247:Carbon Isotopes; D005561:Formates; D011506:Proteins; D005557:Formaldehyde; D012694:Serine; D008715:Methionine; D003903:Deuterium; D003404:Creatinine; C038344:methionine methyl ester; D003401:Creatine; D002794:Choline
CARBON ISOTOPES; CHOLINE; CHROMATOGRAPHY; CREATINE AND CREATININE; DEUTERIUM; EXPERIMENTAL LAB STUDY; FORMALDEHYDE; FORMATES; LIVER; METHIONINE; PROTEIN METABOLISM; RATS; SERINE; URINE