Part I Cover Editorial pages Contents Articles: ORIGINAL ARTICLES Roman I. Vynogradov, Oleksandr S. Tyvonchuk, Vitalii V. Moskalenko, Dmitry Y. ZhytnikEARLY METABOLIC DISORDERS AND MORPHOLOGICAL CHANGES OF INTERNAL ORGANS AFTER GASTRIC BYPASS WITH ONE ANASTOMOSIS.EXPERIMENTAL STUDY Hendrik Hendrik, Massila Kamalrudin, Mohamad Razali, Schandra Purnamawati, Arundito WidikusumoCONTROL FACTORS FOR SITE ERRORS MANAGEMENT OF RADIOTHERAPY DELIVERY Ganna …