1. The surgeons technical skill in suturing;Seki;Surg Today,1993
2. Mitral valve suturing technique. Needle grips of choice determined on a geometric basis;Seki;J Cardiovasc Surg,1993
3. Suturing techniques for a restricted operating space;Seki;Int Surg,1993
4. The “left hand rule” in directional changes of the needle holder with different needle grips. Suturing technique in restricted spaces;Seki;Int Surg,1994
5. Analysis of surgical movements during suturing in laparoscopy;Szabo;Endosc Surg,1994