Normal controls are expensive to find: Methods to improve cost-effectiveness of the screening evaluation
Department of Research Assessment and Training, New York State Psychiatric Institute, 1051 Riverside Drive, Unit 123, New York, NY 10032, USA
Received 8 July 2004; accepted 6 June 2005.
PII: S0165-1781(05)00159-9
doi:10.1016/j.psychres.2005.06.002
© 2005 Elsevier Ireland Ltd. All rights reserved.
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