Using the Composite Immune Risk Score to Assess and Modulate the Patient's Post-transplant Immune Reconstitution.

Inclusion Criteria: * 1\) Patients must be ≥ 16 years of age; * 2\) Patients receiving haploidentical allo-HSCT; * 3\) Patients have to sign an informed consent form before the start of the research procedure. Exclusion Criteria: * 1\) Tandem transplantation or multiple transplantations; * 2\) Mental or other medical conditions that make the patients unable to comply with the research treatment and monitoring requirements; * 3\) Patients who are ineligible for the study due to other factors, or will bear great risk if participating in the study.