William Rainey is Professor of Molecular and Integrative Physiology at the Medical School of the University of Michigan. He is an international renowned specialist in the field of endocrinological research. His research focuses on the adrenal and ovarial stereoidbiosynthesis. He is especially interested in Primary Hyperaldosteronismus. He is a Visting Fellow at CAS in September 2017 upon invitation of Prof. Dr. Martin Reincke.