A Non-Interventional Follow Up Study For Subjects Who Received Sildenafil for Persistent Pulmonary Hypertension of the Newborn (PPHN)
Conditions
- Pulmonary Hypertension, Persistent, of the Newborn
Interventions
- OTHER: non-interventional
Sponsor
Pfizer's Upjohn has merged with Mylan to form Viatris Inc.