Cita APA (7a ed.)

Hennrich, P., Arnold, C., & Wensing, M. (2021). Effects of personalized invitation letters on research participation among general practitioners: A randomized trial. BMC.

Cita Chicago Style (17a ed.)

Hennrich, Patrick, Christine Arnold, y Michel Wensing. Effects of Personalized Invitation Letters on Research Participation Among General Practitioners: A Randomized Trial. BMC, 2021.

Cita MLA (8a ed.)

Hennrich, Patrick, et al. Effects of Personalized Invitation Letters on Research Participation Among General Practitioners: A Randomized Trial. BMC, 2021.