TY - GEN AU - Mehanna,Raja AU - Scherzer,Clemens R AU - Ding,Hongliu AU - Locascio,Joseph J TI - Unrecognized vitamin D3 deficiency is common in Parkinson disease: Harvard Biomarker study SN - 1526-632X PY - 2014///0617 KW - Cholecalciferol KW - deficiency KW - Female KW - Humans KW - Male KW - Parkinson Disease KW - etiology KW - Vitamin D Deficiency KW - complications N1 - Publication Type: Letter; Comment UR - https://doi.org/10.1212/01.wnl.0000449750.81263.7d ER -