Soni R, Ravi Kant Maurya, Raman Pant, Anil Kumar. Study of postpartum amenorrhea in Uttar Pradesh using Exponential distribution for NFHS-5 data . Braz. J. Biom. [Internet]. 2025 Apr. 22 [cited 2025 Apr. 28];43(3):e-43769. Available from: http://200.131.250.9/index.php/BBJ/article/view/769