title: Looking through a glass darkly, then seeing face to face.
authors.affiliation: Enfield Pediatric Associates, Enfield, Connecticut, USA.
authors.forename: Brian T
authors.initials: BT
authors.lastname: Maurer
mesh_terms: D002675:Child, Preschool; D003635:De Lange Syndrome / Q000150:complications / Q000175:diagnosis*; D002658:Developmental Disabilities / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D014429:Twins, Dizygotic / Q000235:genetics*