To send or not to send: weighing the costs and benefits of mailing an advance letter to participants before a telephone survey.

Name: To send or not to send: weighing the costs and benefits of mailing an advance letter to participants before a telephone survey.
Author: Schell, Christina

To send or not to send: weighing the costs and benefits of mailing an advance letter to participants before a telephone survey. — المؤلف: Schell, Christina — BMC research notes 20190311

المؤلف: Schell, Christina
النشر: BMC research notes 20190311
الوصف: 813 p.
الموضوعات: Adult؛ Costs and Cost Analysis؛ Female؛ Follow-Up Studies؛ Humans؛ Logistic Models؛ Male؛ Middle Aged