Efficacy of sorafenib in patients with gastrointestinal stromal tumors in the third- or fourth-line treatment: A retrospective multicenter experience.

Kefeli U, Benekli M, Sevinc A, Yildiz R, Kaplan MA, Ciltas A, Balakan O, Isikdogan A, Coskun U, Dane F, Harputluoglu H, Karaca H, Yazilitas D, Durnali A, Kaya AO, Demirci U, Gumus M, Buyukberber S.

Efficacy of sorafenib in patients with gastrointestinal stromal tumors in the third- or fourth-line treatment: A retrospective multicenter experience. Oncol Lett.

2013 Aug;6(2):605-611. Epub 2013 Jun 17. PubMed PMID: 24137379; PubMed Central PMCID: PMC3789037.