Cite
MLA Citation
Javier Bermejo et al.. “Sildenafil for improving outcomes in patients with corrected valvular heart disease and persistent pulmonary hypertension: a multicenter, double-blind, randomized clinical trial.” European heart journal, vol. 39, 2018, pp. 1255–1264. http://access.bl.uk/ark:/81055/vdc_100151517621.0x000053