Spirometry: Early Detection Of Chronic Obstructive Pulmonary Disease
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Registered 25May68 · MP20780 (Jul-Dec 1970) Copyright holder: Oregon Tuberculosis & Health Assn Production company: Wexler Films
Sources
- U.S. Copyright Office, Catalog of Copyright Entries (renewals, 1970–1978) — title, year, creator, length, copyright
Record added 2026-06-28T20:20:32Z · Suggest a correction