Expanded checklist reference library

Understand, apply, and review every PETMALU-AI item.

Each item contains the validated description, rationale, and example, followed by clearly labeled supplementary guidance on applicability, minimum information, common weaknesses, author questions, reviewer evidence, related items, manuscript locations, and three additional examples.

Proportional use: The 33 items constitute the complete framework, but applicability depends on the nature, scope, and materiality of AI involvement.