D. Heffel

发表

J. Trudell, T. Schieble, D. Heffel, 1987, In Vitro Cellular & Developmental Biology.

J. Trudell, T. Schieble, D. Heffel, 1987, Toxicology and applied pharmacology.

D. Heffel, S. Thaller, D. F. Heffel, 2005, The Journal of craniofacial surgery.