1. Clinical and Experimental Endocrinology; Katholieke Universiteit Leuven; Leuven Belgium
2. Servicio of Endocrinologia; Torre Medica; Guadalajara Mexico
3. Servicio of Endocrinologia; Universidad Autónoma de Nuevo León; Monterrey Mexico
4. Global Clinical Research Metabolics; Bristol-Myers Squibb; Princeton New Jersey USA
5. Global Medicines Development; AstraZeneca; Gaithersburg Maryland USA
6. Global Medicines Development; AstraZenca; Gothenburg Sweden