Ganderton L, Jenkins S, McKenna SP, Gain K, Fowler R, Twiss J, Gabbay E. Validation of the Cambridge Pulmonary Hypertension Outcome Review (CAMPHOR) for the Australian and New Zealand population. Respirology. 2011 Nov;16(8):1235-40. doi: 10.1111/j.1440-1843.2011.02030.x