Methods The basic line investigation materials of chronic diseases and vital statistic materials were conventionally analyzed. Moreover, the death materials of chronic diseases were analyzed by PYLL and DALY analysis.是什么意思_Methods The basic line investigation materials of chronic diseases and vital statistic materials were conventionally analyzed. Moreover, the death materials of chronic diseases were analyzed by PYLL and DALY analysis.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句