Establishment of the Norms of Proactive Prevention Behavior Scale in the Population at High Risk of Digestive System Cancer in Heilongjiang　
XIN Bo，ZHAO Qiuli，WANG Nannan，YU Yang，MA Dexin，ZHANG Yukun
Chinese General Practice . 2021, (4): 453 -459 .  DOI: 10.12114/j.issn.1007-9572.2021.00.045

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