001: 78808
003: Starlibrary PMS 4.5
005: 20180430
020: ^a978-81-8448-939-2
066: ^aat.e
072: ^acolor doppler echo
082: ^a616.0754
100: ^aatul luthra
240: ^aecho made easy - atul luthra
245: ^aecho made easy - atul luthra
260: ^c2012
650: ^aconventional echo
650: ^awhat is an echo