Ökmen, Korgün Ultrasound-guided posterior quadratus lumborum block for postoperative pain after laparoscopic cholecystectomy: A randomized controlled double blind study. [electronic resource] - Journal of clinical anesthesia Sep 2018 - 112-117 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1873-4529 Standard No.: 10.1016/j.jclinane.2018.06.027 doi Subjects--Topical Terms: Abdominal Muscles--diagnostic imagingAdultAnalgesia--methodsAnalgesia, Patient-Controlled--methodsAnalgesics, Opioid--administration & dosageAnesthetics, Local--administration & dosageCholecystectomy, Laparoscopic--adverse effectsDouble-Blind MethodFemaleHumansMaleMiddle AgedNerve Block--methodsPain MeasurementPain, Postoperative--diagnosisProspective StudiesTreatment OutcomeUltrasonography, InterventionalYoung Adult