*Vickersa Andrew J, Barrie R Cassiletha: Unconventional therapies for cancer and cancer-related symptoms. The Lancet Oncology Volume 2, Issue 4, April 2001, Seiten 226-232. doi:10.1016/S1470-2045(00)00293-X | *Vickersa Andrew J, Barrie R Cassiletha: Unconventional therapies for cancer and cancer-related symptoms. The Lancet Oncology Volume 2, Issue 4, April 2001, Seiten 226-232. doi:10.1016/S1470-2045(00)00293-X |