The dosage was determined according to the patient's weight, 100 UG / kg each time; The method of administration: subcutaneous injection; The time of administration: 24-48 hours after the end of chemotherapy, once in each chemotherapy cycle.
The purpose is to evaluate the safety of PEG-rhG-CSF in the prevention of neutropenia in children with tumor after chemotherapy, and then evaluate the effectiveness of PEG-rhG-CSF in preventing neutropenia in children with tumor after chemotherapy.