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inistration:systemsevaluation and date analysis超低量用藥一系列評(píng)價(jià)和數(shù)據(jù)分析(補(bǔ)充正題)。medical chemotherapy works forbreast cancer with involved nodes醫(yī)學(xué)新聞:輔助性化學(xué)療法對(duì)伴有淋巴結(jié)轉(zhuǎn)移的乳腺癌奏效(說(shuō)明上題)。unresolved issue:do smokers catch less lungcancer?尚未解決的問(wèn)題:吸煙