IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-9-7-30802 Original Research Paper TRANSVAGINAL ULTRASOUND MEASUREMENT OF CERVICAL LENGTH IN PREGNANT WOMEN BETWEEN 18 TO 24 WEEKS OF GESTATION FOR PREDICTING SPONTANEOUS PRETERM LABOUR Ramesh Babu Dr. Dr Vidyashree Dr. July 2020 9 7 01 02