The relation between sunscreen layer thickness and vitamin D production after ultraviolet B exposure: a randomized clinical trial

A small suberythemal ultraviolet B dose every second week is sufficient to maintain summer vitamin D levels: a randomized controlled trial

(2011) M.K.B. Bogh et al.   BRITISH JOURNAL OF DERMATOLOGY

Vitamin D production depends on ultraviolet-B dose but not on dose rate: A randomized controlled trial

(2010) Morten K.B. Bogh et al.   EXPERIMENTAL DERMATOLOGY

Sun protection factor persistence on human skin during a day without physical activity or ultraviolet exposure

(2010) Ditte Maria Beyer et al.   PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE

Does chronic sunscreen use reduce vitamin D production to insufficient levels?

(2009) M. Norval et al.   BRITISH JOURNAL OF DERMATOLOGY

Vitamin D Production after UVB Exposure Depends on Baseline Vitamin D and Total Cholesterol but Not on Skin Pigmentation

(2009) Morten K.B. Bogh et al.   JOURNAL OF INVESTIGATIVE DERMATOLOGY

Levels of vitamin D and cardiometabolic disorders: Systematic review and meta-analysis

(2009) Johanna Parker et al.   MATURITAS

Vitamin D: a D-Lightful health perspective

(2008) Michael F Holick   NUTRITION REVIEWS