The relationship between urolithiasis and vitamin D receptor (VDR) gene variants is still under debate according to the available published literature. To assess correlations between VDR gene variants
N: number of studies included; OR: odds ratio; Ph: p value for heterogeneity;*OR with statistical significance;a:studies with more than 1000 participants;b:studies with less than 1000 participants;c:s
The Icelandic population has been sampled in many disease association studies, providing a strong motivation to understand the structure of this population and its ramifications for disease gene mappi