By Silverstone, Trevor, Turner, Paul
By Moodley, Parimala, etc., Ramana, Rajini, Dratcu, Luiz, Cawley, R.H.
By Black, Dora, Cottrell, David
By Pullen, Ian M., etc., Wilkinson, Greg, Wright, Alastair, Gray, Denis Pereira
By Brown, Tom M., Wilkinson, Greg
By American Psychiatric Association
By Castle, David J.
By Roberts, Glenn, Davenport, Sarah, Holloway, Frank, Tattan, Theresa