[Discrimination and interpretation of errors in statistical analysis of qualitative data in medical papers].
Hu
Liang-ping
LP
Consulting Center of Biomedical Statistics, Academy of Military Medical Sciences, Beijing 100850, China. lphu812@sina.com
Liu
Hui-gang
HG
D001699:Biometry / Q000379:methods*; D003627:Data Interpretation, Statistical; D006801:Humans; D008091:Literature; D008511:Medicine; D013223:Statistics as Topic / Q000592:standards*