From MARCO's website:
"The purpose of MARCO is to promote good will and fellowship among amateur radio operators, worldwide, who are professionals in the healing arts, or who have an interest in the various medical, dental and allied fields which constitute the healing arts. On-the-air network operation is considered an integral part of MARCO activity, and is conducted for the purpose of discussing and exchanging medical and technical information, and, wherever possible, to be of public service by assisting medical emergencies and other priority traffic."
