Excluded study	Comparison	Existing Cochrane review
de Leon 1995a	Akathisia at three clozapine dose levels	None currently
de Leon 2003	Muscarinic side effects at three clozapine dose levels	None currently
de Leon 2004	Serum prolactin level at three clozapine dose levels	None currently
Han 2001	Two different dose levels of clozapine with an adjunctive medication (sulpiride)	Wang 2010
Liu 2005	BPRS and TESS scores at three clozapine dose levels	None currently
Nair 1998	Those with and without probable tardive dyskinesia at three clozapine dose levels	None currently
Nair 1999	Those with and without probable tardive dyskinesia at three clozapine dose levels	None currently
Potkin 1993	BPRS, CGI & EPS scores at two clozapine dose levels	None currently
Potkin 1994	BPRS scores at two clozapine dose levels	None currently
Tang 2000	Clinical response at three plasma clozapine concentration levels	None currently
VanderZwaag 1996	BPRS scores at three different serum clozapine levels.	None currently
VanderZwaag 1997	BPRS scores at three different serum clozapine levels.	None currently