Siafarikas, Aris Cross-sectional analysis of universal vitamin D supplementation in former East Germany during the first year of life. [electronic resource] - Journal of pediatric endocrinology & metabolism : JPEM Apr 2017 - 395-404 p. digital Publication Type: Journal Article ISSN: 2191-0251 Standard No.: 10.1515/jpem-2016-0310 doi Subjects--Topical Terms: Cross-Sectional StudiesDietary SupplementsFemaleFollow-Up StudiesGermany--epidemiologyHumansInfantInfant, NewbornLongitudinal StudiesMaleVitamin D--administration & dosageVitamin D Deficiency--epidemiology