Methods The implantation of vena caval filter was performed in 30 patients with DVT of lower extremities.A permanent filter was used in 14 cases, and temporary filter in 16.是什么意思_Methods The implantation of vena caval filter was performed in 30 patients with DVT of lower extremities.A permanent filter was used in 14 cases, and temporary filter in 16.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句