A global representation of vitamin D status in healthy populations: reply to comment by Saadi (Archives of Osteoporosis, 2013)

(untitled) - Dawson-Hughes, B; Wahl, D; Pierroz, D; Stenmark, J; Cooper, C; Ebeling, P; Eggersdorfer, M; Stöcklin, E; Hilger, J; Hoffmann, K; Josse, R; Mithal, A; et al.