Zhu, Jing-Li The combination of transversus abdominis plane block and rectus sheath block reduced postoperative pain after splenectomy: a randomized trial. [electronic resource] - BMC anesthesiology 01 2020 - 22 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 1471-2253 Standard No.: 10.1186/s12871-020-0941-1 doi Subjects--Topical Terms: Abdominal Muscles--diagnostic imagingAnalgesics, OpioidAnesthetics, LocalChinaDouble-Blind MethodDrug Therapy, CombinationFemaleHumansLevobupivacaineMaleMiddle AgedMorphineNerve Block--methodsPain, Postoperative--drug therapyProspective StudiesRectus Abdominis--diagnostic imagingSplenectomy--adverse effectsUltrasonography, Interventional--methods