Publishing in a scholarly (academic/scientific) journal is usually preceded by a thorough examination, known as peer review, of the article. Peers/referees, i.e. researchers active within same subject field/discipline as the author of the submitted article, review the article and assess the scientific quality of the article. They evaluate the methods, the observations, the conclusions and the scientific theory approach. Almost all scientific articles that have been accepted for publication will have undergone minor or major revisions made by authors after recommendations by peers.