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Decreasing rates of childhood immunization are a major concern. Our medical analyst explains why | CNN
The Complete Guide: Diphtheria, Tetanus and Polio | Westbury Chemist
Inactivated Polio Vaccine: What Parents Need To Know - Dr. Green Mom
The Introduction of Diphtheria-Tetanus-Pertussis and Oral Polio Vaccine Among Young Infants in an Urban African Community: A Natural Experiment - eBioMedicine
Get Vaccinated for Polio, Tetanus & Diphtheria - Shivas Pharmacy