TY - GEN AU - Robbins,Helen L AU - Symington,Megan AU - Mosterman,Barbara AU - Goodby,Josie AU - Davies,Louise AU - Dimitriadis,Georgios K AU - Kaltsas,Gregory AU - Randeva,Harpal S AU - Weickert,Martin O TI - Supplementation of Vitamin D Deficiency in Patients with Neuroendocrine Tumors Using Over-the-Counter Vitamin D3 Preparations SN - 1532-7914 PY - 2019///0415 KW - Cholecalciferol KW - therapeutic use KW - Chromogranin A KW - blood KW - Female KW - Gastrointestinal Neoplasms KW - complications KW - Humans KW - Male KW - Middle Aged KW - Neuroendocrine Tumors KW - Nonprescription Drugs KW - Prospective Studies KW - Regression Analysis KW - Vitamin D KW - Vitamin D Deficiency KW - drug therapy N1 - Publication Type: Journal Article; Observational Study; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1080/01635581.2018.1470650 ER -