Cancer chemotherapeutic drugs may be non-immunogenic (yellow rectangles) or immunogenic; the latter may be further divided into three categories based on the dose and schedule: Low-dose daily metronomic chemotherapy (blue), medium-dose and intermediate-length intermittent chemotherapy schedule (MEDIC, a modified form of metronomic chemotherapy, red), and high-dose with long drug-free break schedule (MTD, green). The impact of each treatment regimen on tumor cell killing and immune responses is shown.