Center for Biologics Evaluation and Research
CBER is responsible for assuring the safety , purity , potency , and effectiveness of biologics and related products ( such as vaccines , live biotherapeutics ( probiotics ) , blood products , and cell , tissue , and gene therapies ) . 
<triplet> biologics <subj> cell, tissue <obj> has quality <triplet> vaccine <subj> biologics <obj> subclass of