Following this puts new work involving it at the top of your briefing, with a note saying why it is there. Links are taken from the source record, never inferred.
This is a registry record describing an active, non-recruiting feasibility study with no results posted; it documents planned enrollment and design only.
This is a completed observational registry study with no results posted; it describes planned enrollment and primary outcome measures only, without reported findings.
Narrative review synthesizing mechanistic frameworks for cross-kingdom gut-lung microbiome interactions without presenting new experimental data or clinical evidence.