Vitamin D deficiency and insufficiency in Africa and the Middle East, despite year-round sunny days

R J Green, G Samy, M S Miqdady, M El-Hodhod, O O Akinyinka, G Saleh, J Haddad, S A Alsaedi, A Y Mersal, A Edris, M Salah
2015 South African Medical Journal  
doi:10.7196/samjnew.7785 fatcat:y6kgvvaxojb5ndac3dzxtbdklu