Patients' Needs during Hospitalization in a Cardiac Surgery Unit before and after Coronary Artery Bypass Graft Surgery - Krannich, J.-H.; Herzog, M.; Weyers, P.; Lueger, S.; Faller, H.; Bohrer, T.; Lange, V.; Elert, O.; Leyh, R. (The Thoracic and Cardiovascular Surgeon, 2009)