PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12892157-3 2003 This study aimed to determine whether supplementation with vitamin D3 to healthy children during the winter affects bone turnover in healthy children measured by serum osteocalcin, PICP, PINP or ICTP. Cholecalciferol 59-69 bone gamma-carboxyglutamate protein Homo sapiens 168-179