Infertility and hypogonadism are symptoms of a wide range of disorders to be dealt with in the following chapters. It is the physician's task to recognize the subtle nuances of these symptoms and to use appropriate ancillary techniques in order to arrive at the appropriate diagnosis. In andrology, as in all areas of medicine, a diagnosis as exact as possible is the prerequisite for optimal therapeutic direction. Correct therapy requires knowledge of the pathological basis of the underlying disorder. © 2010 Springer-Verlag Berlin Heidelberg.
Tüttelmann, F., & Nieschlag, E. (2010). Classification of andrological disorders. In Andrology: Male Reproductive Health and Dysfunction (pp. 87–92). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-540-78355-8_4