Chi RC, Reiber GE, Neuzil KM. Influenza and pneumococcal vaccination in older veterans: results from the behavioral risk factor surveillance system. J Am Geriatr Soc. 2006 Feb;54(2):217-23.
Chi RC, Reiber GE, Neuzil KM. Influenza and pneumococcal vaccination in older veterans: results from the behavioral risk factor surveillance system. J Am Geriatr Soc. 2006 Feb;54(2):217-23.