Treatment
primary cancer, neutropenia
PRIMARY CANCER, NEUTROPENIA
Two cycles of chemotherapy were administered as the primary cancer treatment, and PEG‐rhG‐CSF [CSPC Baike (Shandong) Biopharmaceutical Co., Ltd., Shandong, China] was administered once 24–48 h after each cycle of chemotherapy as a prophylactic drug against neutropenia. The dosage was 100 μg/kg, not exceeding 6 mg. After total WBC recovered to >2 × 10