RT Journal Article SR Electronic T1 Proposal of a clinical approach to perioperative visceral pain JF Regional Anesthesia & Pain Medicine JO Reg Anesth Pain Med FD BMJ Publishing Group Ltd SP rapm-2021-103071 DO 10.1136/rapm-2021-103071 A1 Rocha-Romero, Andres A1 Ascensio-Mercado, Maria A1 Yamak Altinpulluk, Ece A1 Oliver-Fornies, Pablo A1 Espinoza, Karla A1 Salazar, Carlos A1 Olea, Marilina Susana A1 Roque-Gómez, Nelson A1 Teles, Ana Sofia A1 Aguilar-Ureña, Ricardo A1 Fajardo Perez, Mario YR 2021 UL http://rapm.bmj.com/content/early/2021/09/29/rapm-2021-103071.abstract AB