Cost-effectiveness of routine and campaign vaccination strategies in Ecuador.
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Citation
Shepard, D. S., Robertson, R. L., Cameron, C. S., Saturno, P., Pollack, M. et al. (1989). Cost-effectiveness of routine and campaign vaccination strategies in Ecuador.. Bulletin of the World Health Organization, 67 (6), 649 - 662. World Health Organization. https://iris.who.int/handle/10665/264710