Is a dissection ballon beneficial in totally extraperitoneal endoscopic hernioplasty (TEP)? A randomised prospective multicenter study. - Bringman,S.; Ek,A.; Haglind,E.; Heikkinen,T.J.; Kald,A.; Kylberg,F.; Ramel,S.; Wallon,C.; Anderberg,B. (Surg Endosc, 2001)