The cancers contracted by four New York Giants football players were not caused by anything at Giants Stadium or the rest of the Meadowlands Sports Complex, researchers concluded Friday.

Doctors were commissioned by the New Jersey Sports and Exposition Authority to conduct a $250,000 study after four Giants were diagnosed with various forms of the disease over a span of seven years."The bottom line is they studied all employees and there is no level of cancer higher than expected and no evidence of an environmental cause among the Giants," said John Samerjan, a spokesman for the authority.

Dr. Fredrick Cohen, who conducted a study of the medical histories of the football players as part of the project, said he is convinced the diseases were in the players before they "started with the Giants.

"The four cancers are unrelated to each other, and there is no common cause of these types of cancers," he said.