1. Department of Experimental and Clinical Biochemistry Silesian Medical Academy, Katowice, Poland, , First Clinic of Internal Medicine Silesian Medical Academy, Katowice, Poland
2. Department of Experimental and Clinical Biochemistry Silesian Medical Academy, Katowice, Poland, First Clinic of Internal Medicine Silesian Medical Academy, Katowice, Poland
3. Department of Experimental and Clinical Biochemistry Silesian Medical Academy, Katowice, Poland
4. First Clinic of Internal Medicine Silesian Medical Academy, Katowice, Poland