TY - RPRT TI - Early postoperative gastrointestinal activity. AU - N G ROTHNIE AU - R A HARPER AU - B N CATCHPOLE PY - 1963 DO - 10.1016/s0140-6736(63)90064-3 UR - https://pubmed.ncbi.nlm.nih.gov/13975381/ ID - 13975381 ER -