Lall, R., Mistry, D., Bridle, C., & Lamb, S. (2012). Telephone interviews can be used to collect follow-up data subsequent to no response to postal questionnaires in clinical trials.
Lua i Stíl Chicago (17ú heag.)Lall, R., D. Mistry, C. Bridle, agus S. Lamb. Telephone Interviews Can Be Used to Collect Follow-up Data Subsequent to No Response to Postal Questionnaires in Clinical Trials. 2012.
Lua MLA (9ú heag.)Lall, R., et al. Telephone Interviews Can Be Used to Collect Follow-up Data Subsequent to No Response to Postal Questionnaires in Clinical Trials. 2012.
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