A K Dubey1, R K Gupta2, S Gopinathan3. 1. Classified Specialist (Paediatrics), Base Hospital, Delhi Cantt - 110 010. 2. Graded Specialist (Paediatrics), Base Hospital, Delhi Cantt - 110 010. 3. Trainee (Paediatrics), Base Hospital, Delhi Cantt - 110 010.