Fig. 4From: Effect of chemotherapy on cancer stem cells and tumor-associated macrophages in a prospective study of preoperative chemotherapy in soft tissue sarcomaRepresentative staining intensity scores for CD68 at ×200. A Pretreatment biopsy, score > 25–50% of cells positive; B post treatment resection, score > 25–50% of cells positive. The stained cells are macrophages, while the tumor cells exhibit faint background stainingBack to article page