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. 2019 Jan 11;27:4. doi: 10.1186/s13049-018-0578-y

Fig. 2.

Fig. 2

(a) The trend of non-operative management from 2002 to 2013 divided by tertiary center and non-center group. (b) The trend of in-hospital mortality rate during 2002 to 2013 divided by tertiary center and non-center group