R. Sarkar, S. Rawat, N. R. Sharma, and H. C. Tiwari, “A study of spot urine protein: creatinine ratio as an alternative to 24 hours proteinuria for the diagnosis of pre-eclampsia”, Int J Reprod Contracept Obstet Gynecol, vol. 9, no. 1, pp. 140–144, Dec. 2019.