Prediction of mortality and prioritisation to tertiary care using the ‘OUR-ARCad’ risk score gleaned from the second wave of COVID-19 pandemic—A retrospective cohort study from South India - Narendran Gopalan; Vinod Kumar Viswanathan; Vignes Anand Srinivasalu; Saranya Arumugam; Adhin Bhaskar; Tamizhselvan Manoharan; Santosh Kishor Chandrasekar; Divya Bujagaruban; Ramya Arumugham; Gopi Jagadeeswaran; Saravanan Madurai Pandian; Arunalatha Ponniah; et al. (PLoS ONE, 2025)