1. short-term improvement in schizophrenia. The contribution of background factors;Am. J. Psychiat.,1968
2. The nature and extent of psychotropic drug usage in the United States;Balter;Psychopharmac. Bull.,1969
3. Non-specific factors in drug therapy of neutic patients;Rickels,1968
4. Some comments on non-drug factors in psychiatric drug therapy;Rickels;Psychosomatics,1965
5. Controlled psychopharmacological research in general practice;Rickels;J. New Drugs,1964