PT - JOURNAL ARTICLE AU - Rourke, J. T. TI - The laughing hernia sign DP - 1988 Apr 15 TA - Canadian Medical Association Journal PG - 721--721 VI - 138 IP - 8 4099 - http://www.cmaj.ca/content/138/8/721.short 4100 - http://www.cmaj.ca/content/138/8/721.full SO - CMAJ1988 Apr 15; 138