in contrast , the biliary output of [ 3h ] mtx was shown to be markedly stimulated by either unlabeled mtx or trimetrexate but not folic acid , demonstrating structural specificity for the biliary output of [ 3h ] mtx distinct from the structural specificity shown for the hepatic uptake of [ 3h ] mtx .
C0016410
folic acid
C0025677
mtx