Comparative Penetration of Point of Care Ultrasound in High And Low/Middle Income Economies. A Secondary Analysis of The Critical Ultrasound Penetration (CUSP) Survey - Sandeep Tripathi; Pramod Guru; Sharmili Sinha; Collins Odhiambo; Vidit Bhargava; Kaushik Bhomick; Padmaraj Duvvuri; Salah G Keyrouz; Candice White (Indian Journal of Critical Care Medicine, 2025)