TY - RPRT TI - Technical problems and side effects associated with continuous intrathecal or epidural post-operative analgesia in patients undergoing hip arthroplasty. AU - L Niemi AU - M Pitkänen AU - M Tuominen AU - P H Rosenberg PY - 1994 UR - https://pubmed.ncbi.nlm.nih.gov/7851354/ ID - 7851354 ER -