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Chen, Joseph C. C., Rachael L. Sumner, Venkat Krishnamurthy Naga, Nicholas Hoeh, Hafis Adetokunbo Ayeni, Vikrant Singh, Frederick Sundram, Douglas Campbell, a Suresh Muthukumaraswamy. "A Randomised, Double-blind, Active Placebo-controlled, Parallel Groups, Dose-response Study of Scopolamine Hydrobromide (4–6 μg/kg) in Patients With Major Depressive Disorder." Trials 2020.

Chen, Joseph C. C., et al. "A Randomised, Double-blind, Active Placebo-controlled, Parallel Groups, Dose-response Study of Scopolamine Hydrobromide (4–6 μg/kg) in Patients With Major Depressive Disorder." Trials 2020.