AUTHOR=Mathavan Akash , Mathavan Akshay , Krekora Urszula , Rao Adityanarayan , Zumberg Marc S. , Justice Jeb , Bayrak-Toydemir Pinar , McDonald Jamie , Ataya Ali TITLE=Case report: Novel homozygous ACVRL1 missense variant in a family with hereditary hemorrhagic telangiectasia and pulmonary arterial hypertension: findings suggest a hypomorphic allele JOURNAL=Frontiers in Genetics VOLUME=16 YEAR=2025 URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2025.1554624 DOI=10.3389/fgene.2025.1554624 ISSN=1664-8021