Intratumoral estrogens and estrogen receptors in human non-small cell lung carcinoma - Niikawa, H; Suzuki, T; Miki, Y; Suzuki, S; Nagasaki, S; Akahira, J; Honma, S; Evans, D B; Hayashi, S; Kondo, T; Sasano, H (Clin Cancer Res, 2008)