Author contributions:
1) Kanelina Bimpa: conception and design, administrative support,
provision of study materials or patients, collection and assembly of
data, data analysis and interpretation, manuscript writing, final
approval of manuscript
2) Theodosia Charitou: conception and design, provision of study
materials or patients, collection and assembly of data, manuscript
writing, final approval of manuscript
3) Apostolos C. Ziogas: collection and assembly of data, data analysis
and interpretation, manuscript writing, final approval of manuscript,
manuscript submission
4) Konstantinos Kantounis: conception and design, administrative
support, provision of study materials or patients, collection and
assembly of data, final approval of manuscript
5) Emmanouil Xydias: collection and assembly of data, data analysis and
interpretation, manuscript writing, final approval of manuscript
6) Mattheos Bobos: conception and design, provision of study materials
or patients, collection and assembly of data, manuscript writing, final
approval of manuscript
7) Elias Tsakos: administrative support, provision of study materials or
patients, collection and assembly of data, data analysis and
interpretation, final approval of manuscript