More Groups
Fewer Groups
More People
Fewer People
Rusch, V. W.; Rosenzweig, K.; Venkatraman, E.; Leon, L.; Raben, A.; Harrison, L.; Bains, M. S.; Downey, R. J.; Ginsberg, R. J. Journal of Thoracic and Cardiovascular Surgery (2001)
Kraus, D. H.; Dubner, S.; Harrison, L. B.; Strong, E. W.; Hajdu, S. I.; Kher, U.; Begg, C.; Brennan, M. F. Cancer (1994)