This research supplement expanded analyses of arsenic and UVR exposures to additional analyses accounting for location and time using spatial epidemiology methods including Geographic Information Systems (GIS). To accomplish this, Marvin Langston was trained in GIS technologies and spatial epidemiologic methods under the mentorship of Dr. Dennis and a co-mentor Dr. Brown (another MEZCOPH faculty with expertise in GIS, not on the parent grant). These methods will then be applied to the arsenic and UVR exposures in relationship to melanoma within this study.

Marvin Langston and Charles Lynch are also contributors to this project.