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    					| Chi-square linear trend test and SPSS software implementation | 
  					 
  					  										
						| GU Liujin, CHEN Gang
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															    															    															    																	Published: 12 January 2024
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															 [1] 孙振球,徐勇勇.医学统计学[M].4版.北京:人民卫生出版社,2016. [2] 胡良平. 医学统计学:运用三型理论分析定量与定性资料[M].北京:人民军医出版社,2009. [3] 张文彤,邝春伟.SPSS统计分析基础教程[M].2版.北京:高等教育出版社,2011. | 
														 
																																									 
												 
												
													
														
															
																
																																																																
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