Search results
Journal of Clinical Epidemiology > 1997 > 50 > 5 > 501-505
Journal of the Neurological Sciences > 1995 > 132 > 2 > 207-215
European Journal of Cancer > 1995 > 31 > 10 > 1665-1671
Journal of Clinical Epidemiology > 1997 > 50 > 5 > 501-505
Journal of the Neurological Sciences > 1995 > 132 > 2 > 207-215
European Journal of Cancer > 1995 > 31 > 10 > 1665-1671