Downstaging of a rectal gastrointestinal stromal tumor by neoadjuvant imatinib therapy allowing for a conservative surgical approach . Clinics, [S. l.], v. 64, n. 8, p. 819–821, 2009. DOI: 10.1590/S1807-59322009000800018. Disponível em: https://www.revistas.usp.br/clinics/article/view/17951.. Acesso em: 31 may. 2024.