<prompt> Which of the following agents is recommended for treatment of Gastrointestinal Stromal Tumors GIST -SorafenibImatinibGefitinibErlotinib  <response>: Ans. is b i.e., Imatinib Tyrosine kinase inhibitors imatinib and sunitinib are approved for the treatment of Gastrointestinal Stromal Tumors GIST 