Writers have also created more complex situations. In some instances, a story is told from the villain's point of view, and any hero trying to stop the villain can be regarded as an antagonist. Such antagonists are usually police officers or other law enforcement officials. In the film K-19: The Widowmaker, an American film about a Soviet Cold War submarine crew, the crew, enemies of the United States, are depicted as protagonists, creating something of a paradox -as very often the American film industry tends to depict the forces of the United States as the people that fight for "good" and "justice", in opposition to Russia (especially the former Soviet Union) being the antagonists who often have maniacal and/or malicious intentions (e.g. world domination). Sometimes, antagonists and protagonists may overlap, depending on what their ultimate objectives are considered to be.
Effect of gonadotropin-releasing hormone agonist and antagonist on steroidogenesis of low responders undergoing in vitro fertilization
Feb 01, 2006; Abstract The aim of the study was to investigate the cause of the lower estradiol (E^sub 2^) concentration in women treated with...