INK Cells As Maintenance Therapy After Chemoradiotherapy for Small Cell Lung Cancer

Intravenous infusion of iNK cells is given to the subject, 5\*108 to 1\*109 cells/dose, three doses per week, a total of 6 doses. And then 1\*109 cells/dose, one doses every 4 weeks , a total of 5 doses.