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AMA Style Quick Guide

Databases (3.15.8)

When citing an online database, the reference should include the following:

  • Author's surname and initials, if given, or name of the group
  • Database title
  • Publisher, or database owner or host
  • Year of publication and/or version number
  • Updated date
  • Accessed date
  • URL

Examples:

  1. Evaluation of phage therapy for the treatment of Escherichia coli and Pseudomonas aeruginosa wound infections in burned patients (PHAGOBURN). ClinicalTrials.gov identifier: NCT02116010. Updated July 23, 2015. Accessed October 13, 2016. https://www.clinicaltrials.gov/ct2/show/NCT02116010
  2. PDQ: NCI's Comprehensive Database. National Cancer Institute; 2015. Updated July 17, 2015. Accessed March 16, 2016. https://www.cancer.gov/publications/pd

UpToDate

Example:

  1. Marion DW. Pacing the diaphragm: Patient selection, evaluation, implantation, and complications. In: Post TW, ed, UpToDate. Updated October 18, 2013. Accessed on November 25, 2013. https://www.uptodate.com/contents/pacing-the-diaphragm-patient-selection-evaluation-implantation-and-complications

Cochrane Systematic Reviews (3.11.4)

Example:

  1. Frazer K, Callinan JE, McHugh J, et al. Legislative smoking bans for reducing harms from secondhand smoke exposure, smoking prevalence and tobacco consumption. Cochrane Database Syst Rev. 2016;(1):CD005992. doi:10.1002/14651858.CD005992.pub3

Supplemental/Drug Databases

Example:

  1. Amoxicillan. Quick Answers. IBM Micromedex [database online]. Truven Health Analytics/IBM Watson Health; 2020. Accessed March 11, 2020. http://www.micromedexsolutions.com