Lader, E. W., Cannon, C. P., Ohman, E. M., Newby, L. K., Sulmasy, D. P., Barst, R. J., … American Heart Association. (2004). The clinician as investigator: participating in clinical trials in the practice setting: Appendix 1: fundamentals of study design. Circulation, 109(21), e302–e304. https://doi.org/10.1161/01.CIR.0000128807.57602.61

Lader, Ellis W., Christopher P. Cannon, E Magnus Ohman, L Kristin Newby, Daniel P. Sulmasy, Robyn J. Barst, Joan M. Fair, et al. “The clinician as investigator: participating in clinical trials in the practice setting: Appendix 1: fundamentals of study design.” Circulation 109, no. 21 (June 1, 2004): e302–4. https://doi.org/10.1161/01.CIR.0000128807.57602.61.

Lader EW, Cannon CP, Ohman EM, Newby LK, Sulmasy DP, Barst RJ, et al. The clinician as investigator: participating in clinical trials in the practice setting: Appendix 1: fundamentals of study design. Circulation. 2004 Jun 1;109(21):e302–4.

Lader, Ellis W., et al. “The clinician as investigator: participating in clinical trials in the practice setting: Appendix 1: fundamentals of study design.” Circulation, vol. 109, no. 21, June 2004, pp. e302–04. Pubmed, doi:10.1161/01.CIR.0000128807.57602.61.

Lader EW, Cannon CP, Ohman EM, Newby LK, Sulmasy DP, Barst RJ, Fair JM, Flather M, Freedman JE, Frye RL, Hand MM, Jesse RL, Van de Werf F, Costa F, American Heart Association. The clinician as investigator: participating in clinical trials in the practice setting: Appendix 1: fundamentals of study design. Circulation. 2004 Jun 1;109(21):e302–e304.