BBB

{
  "id": "MLC-T-ONC-000939",
  "term": "BBB",
  "field": "Oncology and biomedicine",
  "definition": "A network of blood vessels and tissue that is made up of closely spaced cells and helps keep harmful substances from reaching the brain. The BBB lets some substances, such as water, oxygen, carbon dioxide, and general anesthetics, pass into the brain. It also keeps out bacteria and other substances, such as many anticancer drugs. Also called blood-brain barrier.",
  "expansions": [
    "blood-brain barrier"
  ],
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/bbb/"
}