- Study Design and Patient Selection
The present study protocol was reviewed and approved by the Institutional Review Board of the Istanbul University-Cerrahpasa School of Medicine (approval number: 21263603-806.01.03-400654). Informed consent was obtained by all subjects when they were enrolled. This study was conducted with the financial support of the Istanbul University-Cerrahpasa Board of Scientific Research Projects (Number: 30651). The inclusion and exclusion criteria of the study are given below.