“…The respondents choice of surgical procedure reflects published advice (Ward-McQuaid et al 1960, Clark 1968, Cocks et al 1972, Hegarty et al 1973. It is widely recognized that emergency surgery carries a higher mortality than a semi-elective procedure (Ward-McQuaid et al 1960, Schiller et al 1970, Crook et al 1972, Johnston et al 1973, Heideman et al 1977, but this also reflects the fact that emergency surgery will be chosen more often when patients are bleeding most heavily.…”