TY - JOUR AU - Thiem, Ursula AU - Kállay, Enikö AU - Borchhardt, Kyra PY - 2012 TI - Is quarterly bolus vitamin D3 supplementation adequate to prevent childhood pneumonia? JF - Translational Pediatrics; Vol 1, No 2 (October 08, 2012): Translational Pediatrics Y2 - 2012 KW - N2 - Already in 1922, based on the observation of 64 malnourished Viennese infants, Chick and colleagues postulated a factor present in both cod-liver oil and sunlight that is able to cure rickets (1). This factor later turned out to be vitamin D. Today, it is evident that the actions of the active vitamin D metabolite, i.e. 1,25-dihydroxyvitamin D3 (calcitriol), go far beyond bone health, including diverse actions on the immune system as recently reviewed (2). UR - https://tp.amegroups.org/article/view/663