Vide, SérgioCorreia, Rui P.Rego, J.Soares, MariaNunes, Catarina S.Leitão, A.Amorim, Pedro2018-10-012018-10-012017-101537-1921http://hdl.handle.net/10400.2/7532engPupillary pain index correlates with postoperative pain scores in neurosurgical patientsjournal articledoi: 10.1097/ANA.0000000000000452