1. Adler et al (1978)85 Random allocation of 105 inguinal hemia and 119 varicose veins patients aged 18-64 h to 48 postop and 6-7 d postop Complications Rate of recurrence Length of convalescence
2. Garraway et;al,1978
3. Reder et;al,1983
4. Goldbourne and Ruckley,1979
5. Rockwell (1982)78