Semel, Eleanor Messing Understanding Williams syndrome : behavioral patterns and interventions / Eleanor Semel, Sue R. Rosner - Mahwah, N.J. : L. Erlbaum, 2003 - xxi, 456 p. : ill. ; 23 cm. References : p. 402-419 ISBN: 0805826173 (alk. paper) RM446.62 0805826181 (pbk. : alk. paper) Subjects--Topical Terms: Williams SyndromeBehavioral Symptoms--ChildChild, Exceptional National Library of Medicine Call No.: QS677