Response to the letters of Dr Amos and Dr Preti and colleagues.
VU University and EMGO Institute of Health and Care Research, Amsterdam, The Netherlands; Parnassia Psychiatric Institute, The Hague, The Netherlands. Electronic address: m.vander.gaag@vu.nl.
Mark
M
van der Gaag
VU University and EMGO Institute of Health and Care Research, Amsterdam, The Netherlands; Trimbos Institute, Utrecht, The Netherlands.
Filip
F
Smit
University of Manchester, Manchester, United Kingdom.
Paul
P
French
University of Manchester, Manchester, United Kingdom; University of Melbourne, Australia.
Alison R
AR
Yung
University of Melbourne, Australia.
Patrick
P
McGorry
VU University and EMGO Institute of Health and Care Research, Amsterdam, The Netherlands.
Pim
P
Cuijpers
D002986:Clinical Trials as Topic / Q000592:standards; D003365:Costs and Cost Analysis; D003627:Data Interpretation, Statistical; D006801:Humans; D015201:Meta-Analysis as Topic; D011315:Preventive Medicine / Q000191:economics; D011618:Psychotic Disorders / Q000517:prevention & control*; D040242:Risk Reduction Behavior