1. Noninvasive assessment of cardiac output;Hoffman;Semin Thoracic Cardiovas Surg: Ped Cardiac Surg Annual,2005
2. Echocardiography on neonatal intensive care units in Australia and New Zealand;Evans;J Paediatr Child Health,2000
3. Echocardiography for the neonatologist,2000
4. Diagnosis of patent ductus arteriosus in preterm infants;Evans;Neoreviews,2004