Frequent amplification of 11q13 DNA markers is associated with lymph node involvement in human head and neck squamous cell carcinomas. - Müller,D.; Millon,R.; Lidereau,R.; Engelmann,A.; Bronner,G.; Flesh,H.; Eber,M.; Methlin,G.; Abecassis,J. (Eur J Cancer, 1994)