The importance of good-quality saphenous vein segments for bypass procedures

We have read with great interest the manuscriptentitled ‘Saphenous vein graft preparation withconventional or Mayo vein stripper method: Whichone is better?’ written by Dr. Indelen.[1] The studycomprises some issues which need to be clarified.The author uses second plural, i.e. ‘we’; however,there is only one author listed in the manuscript. Didthe sole author conduct all surgical procedures andhistopathological examinations? These issues mighthave led to study bias. If these examinations wereexecuted by histopathologist(s), were they blinded tothe groups?