Meena, B S, Alka Jilowa, Purva ., Anusha ., Samta ., and Neelam . 2020. “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 4 (2). https://doi.org/10.32553/ijmbs.v4i2.945.