2024-11-0920200952-818010.1016/j.jclinane.2019.08.0372-s2.0-85071130470http://dx.doi.org/10.1016/j.jclinane.2019.08.037https://hdl.handle.net/20.500.14288/6384N/AAnesthesiologySingle level bilateral ESPB provides effective analgesia for both lower and upper laparoscopic abdominal surgeriesLetter1873-452949832360003210368