Meena, B. S., A. Jilowa, P. ., A. ., S. ., and N. . “TO FIND OUT AN APPROPRIATE CUT-OFF VALUE OF HUMAN B-HCG LEVELS IN CERVICOVAGINAL SECRETIONS FOR PREDICTION OF PRETERM DELIVERY”. International Journal of Medical and Biomedical Studies, vol. 4, no. 2, Feb. 2020, doi:10.32553/ijmbs.v4i2.945.