Mantovani, G Clinical and immunological evaluation of schizophyllan (SPG) in combination with standard chemotherapy in patients with head and neck squamous cell carcinoma. [electronic resource] - International journal of oncology Jan 1997 - 213-21 p. digital Publication Type: Journal Article ISSN: 1019-6439 Standard No.: 10.3892/ijo.10.1.213 doi