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Comparison of recruitment strategies for a large-scale clinical trial in the elderly
Silagy, Christopher A., Campion, Katrina, McNeil, John J., Worsam, Bernard, Donnan, Geoffrey A., Tonkin, Andrew M.Volume:
44
Year:
1991
Language:
english
DOI:
10.1016/0895-4356(91)90013-Y
File:
PDF, 1.02 MB
english, 1991