STROBE Checklist:cohort, case-control, and cross-sectional studies (combined)Download PDF | WordSTROBE Checklist (fillable):cohort, case-control, and cross-sectional studies (combined)Download PDF | Word STROBE Checklist:cohort studiesDownload PDF | WordSTROBE Checklist:case-control studiesDownload PDF | Word STROBE Checklist:cross-sectional studiesDownload PDF | WordSTROBE Checklist:conference abstractsDownload PDF