Clinical significance of TTF-1 protein expression and TTF-1 gene amplification in lung adenocarcinoma

Justine A. Barletta, Sven Perner, A. John Iafrate, Beow Y. Yeap, Barbara A. Weir, Laura A. Johnson, Bruce E. Johnson, Matthew Meyerson, Mark A. Rubin, William D. Travis, Massimo Loda, Lucian R. Chirieac