Inclusion Criteria:  The individual must have received an infusion of gene-modified cells in a completed Kite-sponsored parent study, has not withdrawn full consent, and has discontinued or completed the post-treatment follow-up period in the parent study, as applicable The individual must understand and voluntarily sign an Informed Consent Form (ICF) or an Informed Assent Form prior to any study-related assessments or procedures being conducted In the investigator's judgment, the individual is willing and able to complete the protocol-required follow-up schedule and comply with the study requirements for participation  Exclusion Criteria: none