Thomas Vogel is Associate Professor Service Médecine Interne et Gériatrie, Hôpital de la Robertsau, Hôpitaux Universitaires de Strasbourg, Strasbourg, France. Hopitald' Enfants Bechir Hamza de Tunis for 10 years and has been a recipient of many award and grants. His international experience includes various programs, contributions and participation in different countries for diverse fields of study. His research interests reflect in his wide range of publications in various national and international journals. He serves as a member of various associations apart from being an author for many books.