Effectiveness of incentive spirometry in patients following thoracotomy and lung resection including those at high risk for developing pulmonary complications / per 580242 Agostini, Paula author, Naidu, Babu author, Ceislik, Hayley author, Steyn, Richard author, Rajesh, Pala Babu author, Bishay, Ehab author, Kalkat, Maninder Singh author, Singh, Sally author