CE accepts advertising and sponsorship for its printed journal according to the following principles:

• - Advertising is separate from content. Advertisers and sponsors have no advance knowledge of our editorial contents, nor do the editors have advance knowledge of advertisers. Content is never altered, added, or deleted to accommodate advertising. Advertisers and sponsors have no input regarding any of our editorial decisions or advertising policies.
• - We reserve the right to decline or cancel any advertisement at any time.
• - Advertisements for pharmaceutical products must conform to all regulations and policies of the Ministry of Food and Drug Safety, Republic of Korea in every respect.