The goal of this observational, quality improvement study is to compare the effect of a dose of morphine given during gall-bladder removal surgery. The main questions to answer are:
* Do participants, who are given given a dose of morphine during gall-bladder removal surgery, experience less pain after surgery? * Does a dose of morphine during gall-bladder removal surgery cause more side effects? The investigators will compare the effects of two types of anesthesia: a) anesthesia without morphine during surgery, and b) anesthesia with morphine during surgery.
patients who have had elective laparoscopic cholecystectomy/planned gall-bladder removal surgery
age limit as above
patients unable to give consent to anesthesia
patients unable to participate in pain scoring
patients with chronic pain syndromes, characterized by patients receiving regular analgesic treatment and patients with active or previous contact to pain clinic)