Lifting the veil of secrecy from industry funding of nonprofit health organizations.

Those who provide information about scientific issues and science policy normally present themselves as being objective and "scientific." This article describes a range of health charities, professional associations, nonprofit advocacy organizations, and industry-created organizations that receive significant funding from industry. In some cases, industry appears either to influence an organization's positions or to limit an organization's freedom to speak out on matters of interest to the funders. Nonprofit organizations need to consider the potential influence on their independence if they accept funding from interested companies and trade associations.