sentences:  Emily Bacon pioneered the first “well-baby clinic" in Philadelphia in the early 1900s.Because her medical career began in 1916, the establishment of the well-baby clinic would have coincided with the smallpox, diphtheria and tetanus vaccination programs.A “well-baby clinic” is a service center, with emphasis on physical and mental hygiene and prophylaxis, where mothers are seen with their young, healthy infants and helped to understand and manage the infant's unfolding maturation and development.