title: [Group design and SAS analysis in orthopedics research experiments].
authors.affiliation: Biomedicine Statistics Consultation Center, Academy of Military Medical Sciences, Beijing 100850, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Wagn
authors.forename: Liang-Ping
authors.initials: LP
authors.lastname: Hu
mesh_terms: D003627:Data Interpretation, Statistical; D006801:Humans; D009985:Orthopedics; D012107:Research Design; D012984:Software