Search results for: Philip Helliwell
Journal of Clinical Epidemiology > 2010 > 63 > 8 > 907-913
Clinical Biomechanics > 2007 > 22 > 5 > 603-606
Journal of Clinical Epidemiology > 2010 > 63 > 8 > 907-913
Clinical Biomechanics > 2007 > 22 > 5 > 603-606