Infantile hypertrophic pyloric stenosis (IHPS): A study of its pathophysiology utilizing the newborn 1 hph-1 mouse model of the disease 2 3 Running Title: Rho-kinase and infantile pyloric stenosis 27 28 29 30 31 Abstract 33 Infantile hypertrophic pyloric stenosis (IHPS) is a common disease of unknown etiology. The 34 tetrahydrobiopterin (BH4)-deficient hph-1 newborn mouse has a similar phenotyp...