@misc{indiciaed68f38a37768, title = {Patient-controlled analgesia: a randomized, prospective comparison between two commercially available PCA pumps and conventional analgesic therapy for postoperative pain.}, author = {Bernice R Hecker and Leonard Albert}, year = {1988}, doi = {10.1016/0304-3959(88)90283-7}, url = {https://pubmed.ncbi.nlm.nih.gov/3200596/}, note = {Source identifier: 3200596} }