Author:
S. Vinayachandran,Vimalraj Sajala
Publisher
Springer Nature Singapore
Reference18 articles.
1. Seshadri L, Arjun G. Essentials of obstetrics. 2nd ed. Gurgaon: Wolters Kluwer.
2. William’s obstetrics. 24th and 25th ed. New York, NY: McGraw Hill Education.
3. Human labour and birth, Oxorn-Foote, sixth international edition, McGraw Hill Education.
4. Zhang J, Troendle J, Mikolajczyk R, et al. The natural history of the normal first stage of labor. Obstet Gynecol. 2010;115:705.
5. Friedman E. The graphic analysis of labor. Am J Obstet Gynecol. 1954;68:1568.