Funding for this research was provided by:
Indian Council of Medical Research (5/4/1-4/07-NCD-II)
Received: 11 December 2020
Accepted: 11 May 2021
First Online: 19 May 2021
: The project as outlined in Fig. InternalRef removedB received approval from Ethics committee of the Institute (ref. No. IESC/T-17/28.08.09, OT-13/28.04.2021). The frozen DNA and plasma samples used in the study formed a part of a simultaneous study “Imbalance between endothelin-1 and plasma nitric oxide products influence the outcome in children suffering from severe pulmonary hypertension due to congenital heart disease” that received approval by the Institute Ethics Committee (Ref. No. NP-36/12.04.06) and written informed consent was taken from parents of all children enrolled in the study.
: Not applicable.