... and interpretati on. GK Collection and assembly of data. AD Collection and assembly of data. AKData analysis and interpretation, collection and assembly of data. CPConception and design, data ... Conception and design, provision of patients, data analysis andinterpretation, manuscript writing. PA Conception and design, data analysisand interpretation, manuscript writing. HA Data analysis ... data analysis and interpretation. SW Conception anddesign, data analysis and interpretation, manuscript writing. All authors readand approved the final manuscript.Competing interests The authors...