Importance of measurement methods and demographic characteristics in evaluating ulnar variance: A retrospective comparative study - Serra Öztürk; Fulya Kahraman; Hande Salim; Baver Acar; Engin Calguner; Başak Oğuz Yolcular; Timur Sindel; Muzaffer Sindel (Acta Orthopaedica et Traumatologica Turcica, 2021)