![Pterin-6-aldehyde, a Cancer Cell Catabolite: Identification and Application in Diagnosis and Treatment of Human Cancer]()
Pterin-6-aldehyde, a Cancer Cell Catabolite: Identification and Application in Diagnosis and Treatment of Human CancerR. Halpern, B. C. Halpern, B. Stea, A. Dunlap, K. Conklin, B. Clark, H. Ashe, L. Sperling, J. A. Halpern, D. Hardy and R. A. Smith · Proceedings of the National Academy of Sciences of the United States of America · 1977