http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
v. 1. Basic research / by D. H. Katz, and others.--v. 2. Pathological considerations / by R. S. Neiman.--v. 3. Occurrence & diagnosis / by Mr. R. Alderson and others.--v. 4. Therapy and complications / by D. Variakojis and others.