Why patients who die of worsening pulmonary arterial hypertension are not on parenteral prostacyclin analog treatment?

Tonelli AR, Dweik RA. (2014) Why patients who die of worsening pulmonary arterial hypertension are not on parenteral prostacyclin analog treatment? J Heart Lung Transplant. 33(2):221. PMID: 24157181. PMCID: PMC4126496.

Link to journal: http://www.jhltonline.org/