Evidence-based clinical guidelines: a new system to better determine true strength of recommendation

E Roddy, W Y Zhang, M Doherty, N K Arden, J Barlow, F Birrell, A Carr, K Chakravarty, J Dickson, E Hay, G Hosie, M Hurley, K M Jordan, C McCarthy, M McMurdo, S Mockett, S O'Reilly, G Peat, A Pendleton, S Richards