A. Penkov

Relation of Serum 25(OH)-Vitamin D to Fat Mass and Lean Mass, Bone Mineral Content and Body Composition in Adults – a DXA-Based Study

M. Boyanov, M. Nikolova, A. Penkov, 2018, Acta Medica Bulgarica.

The Official FENS Calendar

N. Hwalla, Min-Jeong Shin, K. Väänänen, 2002, Annals of Nutrition and Metabolism.

Study of Homocysteine Concentration in Coronary Heart Disease Patients and Comparison of Two Determination Methods

N. Doncheva, A. Penkov, A. Velcheva, 2007, Annals of Nutrition and Metabolism.