Dr. Suárez-Quian studies the role of androgens in the control of the spermatogenic process and how environmental toxicants may alter normal androgen homeostasis. Dr. Suárez-Quian pioneered the use of novel immunohistochemical approaches to investigate spermatogenesis and in 1999 returned to the NIH on sabbatical leave where he worked with laser capture microdissection to develop methods to isolate single cells from tissue sections for macromolecular analysis. Dr. Suárez-Quian teaching expertise is in medical gross anatomy and currently is course director of the first year Medical School Gross Anatomy course and the fourth year elective in Clinical Gross Anatomy. He was a founding member, and a continuing participant, of the Georgetown Medical Center Mini Medical School Program, one of the first such programs of its kind in the U.S.