Low 25-hydroxyvitamin D predicts the onset of mobility limitation and disability in community-dwelling older adults: the Health ABC Study.
Houston DK, Neiberg RH, Tooze JA, Hausman DB, Johnson MA, Cauley JA, Bauer DC, Shea MK, Schwartz GG, Williamson JD, Harris TB, Kritchevsky SB. Low 25-hydroxyvitamin D predicts the onset of mobility limitation and disability in community-dwelling older adults: the Health ABC Study. J Gerontol A Biol Sci Med Sci. 2013 Feb; 68(2):181-7.