Using the Delphi technique to determine which outcomes to measure in clinical trials: recommendations for the future based on a systematic review of existing studies

Sinha, Ian P ; Smyth, Rosalind L ; Williamson, Paula R

PLoS medicine, 2011-01, Vol.8 (1), p.e1000393-e1000393 [Periódico revisado por pares]

United States: Public Library of Science

Texto completo disponível