Notes on verification

Confirmed by museum's own EHU webpage, SciELO article, Wikipedia (ES/EN), NLM directory, and Gaceta Médica de Bilbao profile, all citing approximately/more than 6,000 objects. One discrepancy noted: Basque government tourism sites cite ~8,000 instruments plus 7,000 books, likely reflecting a different counting methodology (total holdings vs. exhibited collection) rather than a contradiction. [cascade flags: wikipedia_dropped_other_sources_exist | tier=silver indep_score=0.867 clusters=3 claim_tier=notable | framework convergence=single on Museum's own official self-description of its collection size, repeated verbatim across secondary sources (EHU webpage, Wikipedia, NLM directory, SciELO article) (upstreams: Basque Museum of the History of Medicine and Science (EHU/UPV official description)) — publishers independent, evidence may not be | kind=empirical eligibility=high]