TY - JOUR AU - Heffer, Ray TI - Echocardiography J2 - Aust Prescr JF - Australian Prescriber PY - 2007 ET - 2007/02/01 VL - 30 IS - 1 SP - 3 EP - 4 DO - 10.18773/austprescr.2007.002 LA - eng UR - https://australianprescriber.tg.org.au/articles/echocardiography.html PB - Therapeutic Guidelines Ltd SN - 1839-3942 ER -