Author contributions

The individual contribution of each co-author is listed below using the following keys: 1-Conception or design, or analysis and interpretation of data, or both, 2-Drafting the article or revising it, 3-Providing intellectual content of critical importance to the work described. 4-Final approval of the version to be published.
Mevlut Tamer Dincer: 1, 2, 3, 4
Necmi Eren: 1, 2, 3, 4
Ahmet Murt: 1, 3
Nuriye Yildiz: 1
Seyda Gul Ozcan: 2, 4
Metin Ergul: 1
Sibel Gokcay Bek: 1
Zeynep Atli: 1, 3, 4
Sinan Trabulus: 3
Erkan Dervisoglu: 3
Levent Doganay: 3
Nurhan Seyahi: 1, 2, 3, 4