School environmental contamination of methicillin-sensitive Staphylococcus aureus as an independent risk factor for nasal colonization in schoolchildren: An observational, cross-sectional study.
Jialing LinTing ZhangChan BaiJianping LiangJiaping YeZhen-Jiang YaoPublished in: PloS one (2018)
Because of the cross-sectional design, we can reveal the association between school environment and schoolchildren on MSSA, but it is not a cause and effect relationship.