NCT04089878 - "To Study the Impact of Balloon-occluded Retrograde Transvenous Obliteration (BRTO)/Plug Assisted Retrograde Transvenous Obliteration (PARTO) Mediated Portal Flow Modulation in Reduction of Ammonia and Improvement in Organ Volume and Functionality in Patients of Cirrhosis With LR Shunt | Crick | Crick