Gross Motor Function Classification System Expanded and Revised 2007. Palisano et al are attached to the CanChild Centre for Childhood Disability Research, McMaster University. They appear to be the founders of the GMFCS (see p 292 of the article by Wood et al, exhibit “ZZ”, handed up during Ms Jackson's re-examination). Pages 5-6 of exhibit "AH" is a separate document from the same authors. Since the expanded and revised GMFCS (pp 1-4) is said to include a new age band (age 12-18) and since pp 5-6 does not include this new age band, I infer that pp 5-6 sets out the original 1997 GMFCS (it is this version which is quoted in the Would article, exhibit “ZZ”). During oral evidence the pages were referred to without drawing this distinction.