Methodological quality of public health guideline recommendations on vitamin D and calcium : a systematic review protocol.
Dai Z, Kroeger CM, McDonald S, Page MJ, McKenzie JE, Allman-Farinelli M, Raubenheimer D, Bero L. Methodological quality of public health guideline recommendations on vitamin D and calcium : a systematic review protocol. BMJ Open. 2019 11 07; 9(11):e031840.