Mass mailing and staff experience in a total recruitment program for a clinical trial: the SHEP experience. Systolic Hypertension in the Elderly Program. Cooperative Research Group
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| Description | scientific article published on 01 April 1999 |
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author: Jeffrey L Probstfield Nemat O. Borhani Patricia A. Borhani |
| Publication date | April 1, 1999 |
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