Integrative Biology, University of California, Berkeley

Professor of Medical Biochemistry, Dr.Med, Faculty of Medicine, University of Tartu

Mayo Clinic and Universidad Autonoma de Nuevo Leon

Professor of Medicine, College of Medicine, University of Lagos

Universitat de Barcelona

Boston University, Harvard University,VA Health System

UiT - The Artic University of Norway

Associate Professor of Animal Physiology , Universidade de évora

Kilimanjaro Christian Medical University College

otolaryngologist private practice