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Application of regression tree in the analysis of factors affecting hospitalization expenses of children infected by respiratory syncytial virus
ZHU Qiuli;ZHANG Tao;DING Yunfang;ZHANG Xuelan;ZHAO Genming△
. 2011, (04): 294 -299 .  DOI: 10.3969/j.issn.16728467.2011.04.003