title: Unrecognized vitamin D3 deficiency is common in Parkinson disease: Harvard Biomarker study.
authors.affiliation: Houston.
authors.forename: Raja
authors.initials: R
authors.lastname: Mehanna
authors.forename: Clemens R
authors.initials: CR
authors.lastname: Scherzer
authors.forename: Hongliu
authors.initials: H
authors.lastname: Ding
authors.forename: Joseph J
authors.initials: JJ
authors.lastname: Locascio
mesh_terms: D002762:Cholecalciferol / Q000172:deficiency*; D005260:Female; D006801:Humans; D008297:Male; D010300:Parkinson Disease / Q000209:etiology* / Q000378:metabolism*; D014808:Vitamin D Deficiency / Q000150:complications*
chemical_list: D002762:Cholecalciferol