TY - BOOK AU - SINGH, K . TI - STEP BY STEP TIPS & TRICKS OF ULTRASOUND IN OBSTETRICS GYNAECOLOGY & INFERTILITY / SN - 8180614638 U1 - 618.2 PY - 2005/// CY - NULL : PB - JAYPEE BROTHERS MEDICAL PUB. , KW - OBST.GYNE ER -