Standardized Protocol Items Recommendations for Observational Studies (SPIROS) for Observational Study Protocol Reporting Guidelines: Protocol for a Delphi Study.
Raman MahajanSakib BurzaLex M BouterKlaas SijtsmaJohannes Andreas KnottnerusJos M P KleijnenPeter Van DaelMaurice P ZeegersPublished in: JMIR research protocols (2020)
PRR1-10.2196/17864.