S. Maria Joy Kallely, C. S. Cherian, and J. Abraham, “Revisiting the usefulness of cold agglutinin test and direct Coombs test for bedside diagnosis of paediatric Mycoplasma pneumoniae pneumonia: a prospective observational study”, Int J Contemp Pediatr, vol. 13, no. 6, pp. 885–889, May 2026.