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. Author manuscript; available in PMC: 2011 Aug 16.
Published in final edited form as: Prog Pediatr Cardiol. 2009 Dec 1;27(1-2):13–23. doi: 10.1016/j.ppedcard.2009.09.004

Fig. 1.

Fig. 1

Kaplan–Meier survival curve of children with idiopathic pulmonary arterial hypertension (IPAH) and associated pulmonary arterial hypertension (APAH) from the UK Pulmonary Hypertension service from 2001–2007.

Haworth and Hislop. Heart 2009;95:312–317.