Source of documents for articles using internal documents from different types of companies (n = 361 articles).

1The articles using documents from other companies were one article each using documents from a hospital, a physician practice management organization, a soft drinks distributor, and a nuclear plant, and one article using internal documents from six different companies including an agribusiness and a utility company.2The totals in this column equal the number of articles relying upon a particular source of documents, minus three instances of duplicate classification by type of company within category of document source. These instances were: one article with litigation source was classified as both tobacco and alcohol; one article with FOIA source was classified as both tobacco and transportation; and one article with unknown source was classified as both manufacturing and mining. The overall column total is not shown, as it is greater than the total number of included articles (n = 361) because several articles relied upon multiple sources for documents.3The litigation-related source of documents for one pharmaceutical article was a leak from legal proceedings.4The other sources of documents were: private archives of a company consultant (1 tobacco article) and records from a bankruptcy (1 transportation article).5The totals in this row equal the number of articles for each type of company, minus instances of duplicate sources of documents. Two tobacco articles relying upon FOIA for documents and one tobacco article relying upon other sources of company documents (the private archives of a company consultant) also relied upon documents from litigation, and one transportation article relied upon both litigation and FOIA. The totals for the tobacco and transportation article columns are therefore not equal to the sum of the classifications within the columns. The overall row total is not shown, as it is greater than the total number of included articles (n = 361) because three articles were classified with two types of companies.