Whereas the standard dogma of a decade ago would have been to routinely offer a combination regimen , several recent studies have suggested that sequential agent chemotherapy can result in similar long - term survival rates with somewhat lower levels of toxicity 十年前的標(biāo)準(zhǔn)方案為常規(guī)給予聯(lián)合化療,而最近的幾個研究顯示序貫化療能產(chǎn)生相似的長期生存率且具有更低的毒性水平。