RCT	randomized controlled trial
CaOx	calcium oxalate
UA	uric acid
OJ	orange juice
NHS	Nurses’ Health Study
HPFS	Health Professionals’ Follow-up Study
WHI	Women’s Health Initiative
RR	relative risk
HR	hazard ratio
PUFA	polyunsaturated fatty acids
EPA	eicosapentaenoic acid
DHA	docosahexanoic acid
AA	arachidonic acid