The 6th edition of the the book Erkrankungen des Lymphgefäßsystems (Diseases of the Lymphatic System) is out. It's a German language textbook, for which Kenny Mattonet, Jörg Wilting and myself wrote the fifth chapter (Genetic causes of primary lymphedema). Get it from here, since Amazon still sells the old, 5th edition. If you have a really good excuse why you should get one for free, mail me! I have a few copies.