1. Department of Gynecology and Obstetrics; Münster University Hospital; Münster Germany
2. Department of Physiology; Faculty of Medicine; Benghazi University; Libya
3. Department of Medical Biochemistry and Microbiology; The Biomedical Center, Uppsala University; Uppsala Sweden
4. Institute of Physiology II, University of Münster; Münster Germany
5. Department of Anatomy; Yong Loo Lin School of Medicine, National University of Singapore; Singapore
6. Department of Biochemistry; NCMLS; Radboud University Medical Centre; Nijmegen The Netherlands
7. Instituto de Bioquimica Medica, Universidade Federal do Rio de Janeiro; Brazil
8. Department of Zoology; Faculty of Science; Cairo University; Giza Egypt
9. Institute of Medical Biochemistry, ZMBE, University of Münster; Münster Germany
10. School of Medical Sciences, University of Hyderabad; Hyderabad India