Authors
M. G. Nikolova
Department of Hygiene, Medical Ecology and Nutrition, Faculty of Medicine, Medical University – Sofia, Bulgaria
A. B. Penkov
Department of Hygiene, Medical Ecology and Nutrition, Faculty of Medicine, Medical University – Sofia, Bulgaria
M. A. Boyanov
Clinic of Endocrinology and Metabolic Diseases, University Hospital “Alexandrovska”, Department Internal Medicine, Faculty of Medicine, Medical University – Sofia, Bulgaria
