1. Uterosacral block and the obstetrical anesthesia problem
2. Paracervical Block Analgesia in Labour;Brown E. O.;Obstet. and Gynec.,1965
3. Continuous Paracervical Block in Obstetrics;Burchell R. C.;Obstet. and Gynec.,1964
4. Paracervical Nerve Block
5. Paracervical Block Anesthesia in Labor;Freeman D. W.;Obstet. and Gynec.,1956