Estimation of the burden of pandemic(H1N1)2009 in developing countries: experience from a tertiary care center in South India. oleh Mahesh Moorthy, Prasanna Samuel, John Victor Peter, Saranya Vijayakumar, Dipika Sekhar, Valsan P Verghese, Indira Agarwal, Prabhakar D Moses, Kala Ebenezer, Ooriapadickal Cherian Abraham, Kurien Thomas, Prasad Mathews, Akhilesh C Mishra, Renu Lal, Jayaprakash Muliyil, Asha Mary Abraham