Zhou 2005.

Methods	Seven‐week, (likely) randomised study.
Participants	Out‐patients with depression according to CCMD‐III criteria.
Interventions	Citalopram: 29 participants. Venlafaxine: 28 participants. Citalopram dose range: 20‐40 mg/day. Venlafaxine dose range: 50‐300 mg/day.
Outcomes	Change in Hamilton Depression Rating Scale (HDRS) score from baseline to endpoint, number of patients who responded to treatment.
Notes	Waiting for translation from Chinese to English (only abstract available in English).

MAOIs: Monoamine oxidase inhibitors 
 PET: Positron emission tomography 
 SSRIs: Selective serotonin re‐uptake inhibitors