0 a letter that you send with something to explain what it is or to give more information about it -- list przewodni lub towarzyszący
Each district supplied its own covering letter, but in all respects the questions asked were identical.
The patients were informed and asked to participate through a covering letter sent or given at the hospital.
In a covering letter, the residents were assured of their anonymity and that their responses would have no effect on their care arrangements.
A covering letter explained the purpose of the questionnaire.
Several were returned with a covering letter saying that the company did not answer questionnaires.
A newsletter was distributed along with a covering letter stressing that recruitment was ongoing.
The remaining 580 women were subsequently sent the questionnaire together with a covering letter explaining the purpose of the study.
A covering letter was sent with the questionnaires from my helper and myself explaining my research and giving instructions to the teachers.
