DRD2 and schizophrenia: Its map position is close to that of DRD2. It also contributed to the genetic correlation between cannabis and cigarette smoking and schizophrenia [65], though in our study we did not find a local genetic correlation between CanLU and schizophrenia near NCAM1. We did, however, find a local genetic correlation between CanLU and lifetime smoking in this region, again supporting the involvement of NCAM1 in both traits.