Table 1

Data extraction form

Article Number
Last Name of First Author
First Author Type:
  1. MD

  2. philosopher/ethicist

  3. REB/regulator

  4. historian

Article Type:
  1. case report, observational study or clinical trial

  2. commentary, editorial or personal narrative or review

  3. historical manuscript

  4. philosophical manuscript

  5. government document

What reason is given to justify randomization in a clinical trial?