Perioperative management recommendations to resume elective orthopaedic surgeries for post-COVID-19 “new normal”: Current vision of the Turkish Society of Orthopaedics and Traumatology - Kahraman Öztürk; Ethem Ayhan Ünkar; Ahmet Alperen Öztürk (Acta Orthopaedica et Traumatologica Turcica, 2020)