“…Twenty-four studies were included in the final quantitative data synthesis, totaling 12,579 patients (2,175 robotic PD and 10,404 open PD) 8,28,30, . Seven studies 30,34,36,38,41,50,52 were prospective cohort studies and 17 retrospective cohort studies 8,28,35,37,39,40,[42][43][44][45][46][47][48][49]51,53,54 . In four of these studies 34,40,43,50 , data were extracted from the abstracts of conference proceedings published in indexed journals.…”