Authors:
Mac Donald, R
Baken, L
Nelson, A
Nichol, KL
Citation: R. Mac Donald et al., Validation of self-report of influenza and pneumococcal vaccination statusin elderly outpatients, AM J PREV M, 16(3), 1999, pp. 173-177
Authors:
Nichol, KL
Baken, L
Wuorenma, J
Nelson, A
Citation: Kl. Nichol et al., The health and economic benefits associated with pneumococcal vaccination of elderly persons with chronic lung disease, ARCH IN MED, 159(20), 1999, pp. 2437-2442
Citation: Kl. Nichol et al., Relation between influenza vaccination and outpatient visits, hospitalization, and mortality in elderly persons with chronic lung disease, ANN INT MED, 130(5), 1999, pp. 397