Best fit NFW model parameters and their 68% CL
uncertainty (marginalized over all the other parameters).
(SL) corresponds to a model in which weak lensing constraints
are ignored whereas (SL+WL) takes both strong and weak lensing
constraints into account. (1) Refers to the CHANDRA
X-rays values of Allen et al. (2001). The apparent disagreement
between their estimates and ours is discussed in the text.