1.   A mix of personal interviews and observation methods will be employed.

2.   Admissions criteria were rigorous, and included a personal interview as well as a three-month battery of tests.

3.   Donors undergo a very personal interview before giving blood.

4.   If you can acquire this information through a personal interview or contact, by all means do so.

5.   In regard to supporting evidence, be sure to use every possible source including personal interviews with authorities in the field.

6.   Information for the follow up study was collected by means of personal interviews, death certificates, and records from hospitals and nursing homes.

7.   The candidates were required to answer a ten-page questionnaire, followed by a daylong personal interview.

8.   The principal methods of investigation are the collection and analysis of secondary data, complemented by personal interviews, where necessary.

9.   The research is especially vulnerable if the data are collected from personal interviews.

10.   We therefore reviewed all patients by personal interview where possible.