title: Benign, idiopathic pulmonary hypertension? Two further cases of unusually long duration.
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis / Q000401:mortality; D008875:Middle Aged; D011379:Prognosis; D013997:Time Factors