He has specialized in treating cancer with a modified psychoanalytic approach. These methods are described in his books The causes and prevention of cancer and The anti-cancer marriage, which were published in 1985 and 1986. The causes and prevention of cancer was nominated as the American medical writers book of the year 1986.
He claims to be able to reverse the cancer process in metastatic cancer by a success rate of complete remission in about a third of cases, and claims that almost everybody else live significantly longer with a much better quality of life. He has reported this in several medical articles.