Rajani, . N., Sushila, K., Jain, . D., Rakesh P, K., & Vinay K, M. (2012). TO ASSESS VALUE OF YOLK SAC IN PREDICTING PREGNANCY OUTCOME DURING FIRST TRIMESTER: OBSERVATIONAL STUDY. National Journal of Medical Research, 2(03), 343–347. Retrieved from https://njmr.in/index.php/file/article/view/801