HA Bischoff-Ferrari, B Dawson-Hughes, WC Willett… - Jama, 2004 - jamanetwork.com
… The lowest dose of vitamin D was 400 IU/d, but reported calcium intake from dairy products
… mg/d. The other 4 trials administered either vitamin D 800 IU/d plus 1200 mg/d of calcium 11 ,…