[1] Henan Prov Peoples Hosp, Dept Oncol, Zhengzhou 450052, Peoples R China
[2] Westchester Cty Med Ctr, Dept Med, Valhalla, NY 10595 USA
[3] New York Med Coll, Valhalla, NY 10595 USA
[4] Zhengzhou Univ, Henan Canc Hosp, Zhengzhou 450052, Peoples R China
[5] Zhengzhou Univ, Affiliated Canc Hosp, Zhengzhou 450052, Peoples R China