Biology — Cholesterol Transport (LDL/HDL)

{
  "elements":[
    {"data":{"id":"liver","label":"Liver"}},
    {"data":{"id":"vldl","label":"VLDL"}},
    {"data":{"id":"ldl","label":"LDL (delivers cholesterol)"}},
    {"data":{"id":"tissue","label":"Peripheral tissues"}},
    {"data":{"id":"hdl","label":"HDL (reverse transport)"}},
    {"data":{"source":"liver","target":"vldl"}},
    {"data":{"source":"vldl","target":"ldl"}},
    {"data":{"source":"ldl","target":"tissue","label":"LDL receptor"}},
    {"data":{"source":"tissue","target":"hdl","label":"excess cholesterol"}},
    {"data":{"source":"hdl","target":"liver","label":"returns it"}}
  ],
  "layout":{"name":"breadthfirst","directed":true}
}