title: Developmental milestones 3: social-emotional development.
authors.affiliation: USAF, Medical Corps, Madigan Army Medical Center, Joint Base Lewis-McChord, WA, USA.
authors.forename: R Jason
authors.initials: RJ
authors.lastname: Gerber
authors.forename: Timothy
authors.initials: T
authors.lastname: Wilks
authors.forename: Christine
authors.initials: C
authors.lastname: Erdie-Lalena
mesh_terms: D002657:Child Development; D002675:Child, Preschool; D004644:Emotions; D006801:Humans; D007223:Infant; D012922:Social Change