Unrecognized vitamin D3 deficiency is common in Parkinson disease: Harvard Biomarker Study

Ding H, Dhima K, Lockhart KC, Locascio JJ, Hoesing AN, Duong K, Trisini-Lipsanopoulos A, Hayes MT, Sohur US, Wills AM, Mollenhauer B, Flaherty AW, Hung AY, Mejia N, Khurana V, Gomperts SN, Selkoe DJ, Schwarzschild MA, Schlossmacher MG, Hyman BT, Sudarsky LR, Growdon JH, Scherzer CR. Unrecognized vitamin D3 deficiency is common in Parkinson disease: Harvard Biomarker Study. Neurology. 2013; 81(17): 1531-7.