Ramucirumab plus Erlotinib as first-line treatment for advanced or recurrent non-small cell lung cancer harboring EGFR exon 21 L858R mutation: A multicenter retrospective observational cohort study in Japan (REAL-SPEED)

Ishihara M, Kawamura T, Namba Y, Takeyasu Y, Hasegawa Y, Sato Y, Negi Y, Oba T, Sumi T, Hirata H, Funabashi H, Oya Y, Kikuchi H, Katsurada N, Nakatani T, Tanimura K, Nakagawa T, Takeda N, Asami T, Honjo O, Nagashima H, Yamaura T, Hata N, Kitazono M, Nishioka N, Tamiya A, Sakamori Y, Shigaki R, Kaira K, Honda R, Matsui T, Suzuki E, Ito K, Otsuka K, Takase N, Murakami Y, Matsuno K, Inoue S, Kisohara A, Kusumoto S, Aoshima H, Kakizaki Y, Kubo A, Hata A, Ishikawa N, Hamai K, Kanaji N, Misumi T, Matsutani N, Seki N.