“…The sample sizes of relevant study groups ranged from 13 [15] to 770 [44]. Fourteen studies included data relating to CP [22, 33, 35, 36, 39, 46, 48-51, 53, 55, 57, 58], six included data relating to SB [21,38,51,52,54,56] and five included data relating to childhood hydrocephalus [40][41][42][43]45]. Data for a range of other relevant conditions were also found in either single studies or from extractable subgroups, these included muscular dystrophy [34,44], spinal muscular atrophy [47], Morquio A syndrome [37], congenital clubfoot [59] and microcephaly [51].…”