Barriers to Measles and Pertussis Immunization: The Knowledge and Attitudes of Pennsylvania Primary Care Physicians

Richard K. Zimmerman, Bradley J. Bradford, Janine E. Janosky, Tammy A. Mieczkowski, Elizabeth G. DeSensi, Seymour Grufferman

American Journal of Preventive Medicine · 1997 · 57 citations · 20 references

Concepts

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