Utility of Lung Ultrasonography for Early Diagnosis and Monitoring of Ventilator-associated Pneumonia in Mechanically Ventilated Patients: A Prospective Observational Study - Shakti B Mishra; Satyajit Choudhury; Cherian Roy; Sagarika Panda; Pritam Chhotray; E Shantanu K Patra (Indian Journal of Critical Care Medicine, 2025)