Early malignant progression of hereditary medullary thyroid cancer - Machens, Andreas; Niccoli-Sire, Patricia; Hoegel, Josef; Frank-Raue, Karin; Vroonhoven, Theo J. van; Roeher, Hans-Dietrich; Wahl, Robert A.; Lamesch, Peter; Raue, Friedhelm; Conte-Devolx, Bernard; Dralle, Henning (The New England journal of medicine, 2003)