Vitamin D status in healthy elderly subjects in Auckland.
D000328:Adult; D000368:Aged; D002112:Calcifediol / Q000097:blood*; D002117:Calcitriol / Q000097:blood*; D006801:Humans; D008875:Middle Aged; D009520:New Zealand; D012621:Seasons
D002117:Calcitriol; D002112:Calcifediol