Cita APA (7a ed.)
Boyce, M., Walther, M., Kirk, J., Smith, S., & Warrington, S. (2013). Survey of users of TOPS, an internet-based system to prevent healthy subjects from over-volunteering for clinical trials...The Over-volunteering Prevention System. European Journal of Clinical Pharmacology, 69(10), 1757-1761.
Cita Chicago Style (17a ed.)
Boyce, M., M. Walther, J. Kirk, S. Smith, y S. Warrington. "Survey of Users of TOPS, an Internet-based System to Prevent Healthy Subjects from Over-volunteering for Clinical Trials...The Over-volunteering Prevention System." European Journal of Clinical Pharmacology 69, no. 10 (2013): 1757-1761.
Cita MLA (9a ed.)
Boyce, M., et al. "Survey of Users of TOPS, an Internet-based System to Prevent Healthy Subjects from Over-volunteering for Clinical Trials...The Over-volunteering Prevention System." European Journal of Clinical Pharmacology, vol. 69, no. 10, 2013, pp. 1757-1761.
Precaución: Estas citas no son 100% exactas.