Dedication to Professor Dr. med. Dr. h. c. mult. Benno Runnebaum on his 65th Anniversary The name of Benno Runnebaum is closely tied to the status of gynaecological endocrinology and reproductive medicine. Therefore, we would like to dedicate this conference book entitled "Fertility Control" to him in recognition of his achieve- ments. Who is Benno Runnebaum? Benno Runnebaum was born on 22 July, 1933, in Ruschendorf, Germany. After taking his A-levels, he studied medicine in Munster, Bonn and Cologne. He graduated from Cologne University in 1961 and then prepared his doctoral thesis on the "Identificati- on and quantification of progesterone, 20a-dihydroprogesterone, 20~-dihydroproge- sterone and 17a-hydroxyprogesterone in the plasma of human placental blood". This Benno Runnebaum VI Preface publication was the first to describe the progestin cycle in the feto-placental unit. His thesis was supported by Professor Dr. med. Dr. h. c. Josef Zander. It was graded "sum- ma cum laude" and won him a scholarship from the National Institute of Health for training in steroid biochemistry at the Biochemical Institute in Salt Lake City (Profes- sor Samuels) in 1962 and 1963.
After his return to Germany he worked at the Univer- sity Women's Hospital of Cologne. He received his further specialist training in 1964 at the Heidelberg Women's Hospital, under the chairmanship of his teacher, Professor Zander.