title: Word Gap Redux: Developmental Sequence and Quality.
authors.affiliation: Graduate School of Education, Harvard University, Cambridge, Massachusetts.
authors.forename: Meredith L
authors.initials: ML
authors.lastname: Rowe
authors.affiliation: Department of Pediatrics, Boston University School of Medicine/Boston Medical Center, Boston, Massachusetts.
authors.forename: Barry
authors.initials: B
authors.lastname: Zuckerman
mesh_terms: D002648:Child; D002675:Child, Preschool; D003142:Communication; D006801:Humans; D007182:Income / Q000706:statistics & numerical data; D007223:Infant; D007231:Infant, Newborn; D007805:Language Development Disorders / Q000209:etiology*; D010287:Parent-Child Relations; D011203:Poverty / Q000706:statistics & numerical data; D014825:Vocabulary