By Richard De Mille
By Jan Hawkins
By Kathy Evans, Janek Dubowski
By Dabney Ewin
By Alison Sealey
By Bruce D. Perry, Maia Szalavitz
By Thomas F. Oltmanns, Robert E. Emery
By Leslie Smith
By Ignacio Matte-Blanco
By Brian Sutton-Smith
By Isabel Clarke
By Barbara A. Wilson
By Vicky Barber
By Julia Samuel
By Judith Lewis Herman
By Anne Gray (in Private practice, UK.)
By Gerry Heery
By Ved P Varma
By Professor Panos Vostanis, Kedar Nath Dwivedi, Peter Harper
By Dorothy Whitaker, Lesley Archer, Leslie Hicks
By Angus McCabe
By Christine Hobart, Jill Rose Frankel
By Adolf Guggenbuhl-Craig
By D. W. Winnicott
By Amanda Holt, Cris Hoskin, Helen Richardon Foster, Kevin Lowe, Sarah Lindfield
By Trevor Lubbe
By Joanna Richardson, Carol Joughin
By Marc H. Bornstein (Eunice Kennedy Shriver National Institute of Child Health and Human Development, USA)
By Marc H. Bornstein (National Institute of Child Health and Human Development, Bethesda, MD, USA)
By Sylvie Naar-King, Deborah A. Ellis, Maureen A. Frey, Michele Lee Ondersma