STK39 and Parkinson disease: To provide more evidence into genuine loci contributing to PD across diverse populations, we conducted a case-control study to examine the genetic associations of STK39 (serine/threonine kinase 39, rs2102808) and CCDC62/HIP1R (Coiled-coil domain containing 62/Huntingtin-interacting protein 1-related, rs12817488) among Han Chinese in mainland China.