Topics: electronic medical records, immunization, privacy The technological landscape, including data sources both intra- and extramural to health care, continues to change rapidly, introducing advancements and challenges.1–7 Although pediatrician use of electronic health record (EHR) systems has become nearly ubiquitous in the United States, with nearly 94% of pediatric offices surveyed reporting EHR use in 2016, fewer than 17% reported using EHRs with full pediatric functionality at that...