1. Immediate post-partum IUD insertions at the Women's Hospital, Bangkok;Bhumichitr,1970
2. The introduction of contraception in an urban hospital;Swartz;Am J Obstet Gynecol,1967
3. Immediate post-partum IUD insertions at Chulalongkorn Medical School Hospital, Bangkok;Snidvongs,1970
4. Immediate post-partum IUD insertions at Vajira Hospital, Bangkok;Dharmapanij,1970
5. Immediate postpartum IUD insertions;Banharnsupawat;Obstet Gynecol,1971