APA-čujuhus (7. p.)

Howick, J. (2009). Questioning the methodologic superiority of 'placebo' over 'active' controlled trials.

Chicago-čujuhus (17. p.)

Howick, J. Questioning the Methodologic Superiority of 'Placebo' over 'Active' Controlled Trials. 2009.

MLA-čujuhus (9. p.)

Howick, J. Questioning the Methodologic Superiority of 'Placebo' over 'Active' Controlled Trials. 2009.

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