"Temporary remissions in acute leukemia in children produced by folic acid antagonist, 4-aminopteroyl-glutamic acid (aminopterin)". N. Engl. J. Med.238 (23): 787–93. 1948. doi:10.1056/NEJM194806032382301. பப்மெட்:18860765.
"Temporary remissions in acute leukemia in children produced by folic acid antagonist, 4-aminopteroyl-glutamic acid (aminopterin)". N. Engl. J. Med.238 (23): 787–93. 1948. doi:10.1056/NEJM194806032382301. பப்மெட்:18860765.