Correlation of Pulse Pressure Index and High-sensitivity C-reactive Protein as Predictors of Diastolic Dysfunction in Essential Hypertension - A Prospective Observational Study at a Tertiary Care Centre in Chengalpattu. - Rani TS; Nalabothula RT; Kumarasamy S; Kumar JS; Bolisetty SS (The Nigerian postgraduate medical journal, 2026)