Dubois M, Delannoy E, Duluc L, Closs E, Li H, Toussaint C, Gadeau A, Gödecke A, Freund-Michel V, Courtois A, Marthan R, Savineau J, Muller B. Biopterin Metabolism and eNOS Expression during Hypoxic Pulmonary Hypertension in Mice. PLoS ONE. 2013 Nov 27;8(11):e82594. doi: 10.1371/journal.pone.0082594.