High KP, D'Aquila RT, Fuldner RA, Gerding DN, Halter JB, Haynes L, Hazzard WR, Jackson LA, Janoff E, Levin MJ, Nayfield SG, Nichol KL, Prabhudas M, Talbot HK, Clayton CP, Henderson R, Scott CM, Tarver ED, Woolard NF, Schmader KE. Workshop on immunizations in older adults: identifying future research agendas. J Am Geriatr Soc. 2010 Apr; 58(4):765-76.