More Groups
Fewer Groups
More People
Fewer People
More Years
Fewer Years
Mazumdar, M.; Tu, D. Controlled Clinical Trials (2003)
Bacik, J.; Mazumdar, M.; Zbrozek, A. Controlled Clinical Trials (2003)
Vickers, A. J.; McCarney, R. Controlled Clinical Trials (2003)
Gonen, M. Controlled Clinical Trials (2003)
Panageas, K. S.; Smith, A.; Gonen, M.; Chapman, P. B. Controlled Clinical Trials (2002)
Leung, D. H. Y.; Wang, Y. G. Controlled Clinical Trials (2001)
Begg, C. B. Controlled Clinical Trials (2000)
Fazzari, M.; Heller, G.; Scher, H. I. Controlled Clinical Trials (2000)
Houston, C.; Frankel, J.; Quinlivan, S.; Gallina, E.; Berkery, R.; Begg, C. Controlled Clinical Trials (1992)
Wu, D.; Begg, C.; Houston, C.; Miller, E. Controlled Clinical Trials (1992)