More Groups
Fewer Groups
More People
Fewer People
Ferrone, C. R.; Porat, L. B.; Panageas, K. S.; Berwick, M.; Halpern, A. C.; Patel, A.; Coit, D. G. JAMA - Journal of the American Medical Association (2005)
Margolis, D. J.; Halpern, A. C.; Rebbeck, T.; Schuchter, L.; Barnhill, R. L.; Fine, J.; Berwick, M. Archives of Dermatology (1998)