TY JOUR TI VITAMIN D PROVISION FOR CHILDREN AND ADULT POPULATION OF THE AMUR REGION KW vitamin D KW vitamin D insufficiency KW vitamin D deficiency KW risk factors JO Bulletin physiology and pathology of respiration AU Romantsova, E.. AU Borisenko, E.. AU Babtseva, A.. PY 2016 IS 1 PB Far Eastern Scientific Center of Physiology and Pathology of Respiration