Kerstin studied medicine at Frankfurt University (1976 1983). After state approval as physician and medical thesis (summa cum laude) Junior Research Fellow at Center of Physiology, University Frankfurt (1983-1985). From 1986 to 1995 Clinical Investigator at Center of Cardiovascular Pharmacology, Mainz-Wiesbaden, Germany and Board Certification in Clinical Pharmacology. Since 1995 Independent Consultant in Clinical Pharmacology and Medical Writer. More than 30 years experience in reporting clinical trials, writing expert reports, scientific publication (>30 original papers, >90 abstracts and oral presentations), and conduct of trainings in clinical pharmacology.