http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
comparison between ultrasound guided tap block versus surgical tap block in its efficacy as adjunct to postoperative pain management in lower midline open colorectal surgery
M.Anaes Department of Anaesthesiology, Faculty of Medicine, University of Malaya 2017.