Layton JB, Forns J, Turner ME, Dempsey C, Bartsch JL, Anthony MS, Danysh HE, Ritchey ME, Demos G. Falls and fractures in patients with Parkinson's Disease–related psychosis treated with Pimavanserin vs atypical antipsychotics: a cohort study. Drugs Real World Outcomes. 2022 Mar;9(1):9-22. doi: 10.1007/s40801-021-00284-1
Cole JA, Rothman KJ, Cabral HJ, Zhang Y, Farraye FA. Migraine, fibromyalgia, and depression among people with IBS: a prevalence study. BMC Gastroenterol. 2006 Sep 1;6(26).