R. Keerl books & textbook
Atlas of Lacrimal Surgery
Springer Verlag /2006-01-01 Hardcover / 168 Pages
isbn-10: 3540262555 / isbn-13: 9783540262558
Minimally Invasive Endonasal Sinus Surgery: Principles, Techniques, Results, Complications, Revision Surgery
Hosemann, Werner Weber, R. Keerl, R. Lund, Valerie
George Thieme Verlag /2000-02-01 Hardcover / 134 Pages
isbn-10: 0865779074 / isbn-13: 9780865779075