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Available in MAS Ultra - School Edition.
Available in JSTOR Life Sciences Archive Collection.
Available in Gale OneFile: Economics and Theory.
Available in Social Science Premium Collection.
Available in Gale OneFile: Popular Magazines.
Available in Gale In Context: Biography.
Available in Gale Academic OneFile Select.
Available in Science Database.
Available in Education Database (ProQuest).
Available in Gale OneFile: Health and Medicine.
Available in Gale General OneFile.
Available in BioOne Complete.

Available in Academic Search Complete.
Available in JSTOR Life Sciences Archive Collection.
Available in Chicago Complete Collection - Full Run.