Named accountability
Every reviewed answer identifies its author or professional reviewer, applicable expertise and review date.
Sources and scope
Claims should rely on authoritative or primary sources when available. Geographic assumptions, cost methodology and material limitations are made visible.
Commercial separation
Payment may affect clearly labeled placement or lead eligibility, but it does not control expert conclusions, safety guidance or verification decisions.
Corrections
Material corrections are dated and recorded. Readers and professionals can report an error through the correction form.