David R. Gretch is currently working as an Associate Professor of Laboratory Medicine and Medicine, University of Washington Medical Center in USA. He has published numerous research papers and articles in reputed journals and has various other achievements in the related studies. He has extended his valuable service towards the scientific community with is extensive research work.

Immunology of Hepatobiliary systems, Liver Biology, Liver Physiology, Liver Functions, Hepatology, Basal cell carcinoma, Squamous cell carcinoma of the skin, Squamous cell carcinoma of the skin