1. COVID-19 in an adult with tricuspid atresia S/P fontan palliation;Ahluwalia;JACC Case Rep,2020
2. Does sildenafil improve ventilatory function in asthmatic subjects?;Aljanabi;Breathe,2017
3. Sildenafil in the treatment of pulmonary hypertension;Barnett;Vasc Health Risk Manag,2006
4. Sildenafil: an orally active type 5 cyclic GMP-specific phosphodiesterase inhibitor for the treatment of penile erectile dysfunction;Boolell;Int J Impot Res,1996
5. Clinical pharmacology of phosphodiesterase 5 inhibitors in erectile dysfunction;Bourin;SOA Archives of Pharmacy & Pharmacology,2018