title: Commentary: An early, short, and useful sensitive period in the human infant.
authors.affiliation: University of California, San Francisco, California, USA.
authors.forename: Marshall H
authors.initials: MH
authors.lastname: Klaus
mesh_terms: D006801:Humans; D007231:Infant, Newborn; D008425:Maternal Behavior; D009034:Mother-Child Relations; D009769:Object Attachment; D049590:Postpartum Period; D012426:Russia; D013997:Time Factors; D014743:Videotape Recording