Biology — Renin–Angiotensin System

{
  "elements":[
    {"data":{"id":"renin","label":"Renin (kidney)"}},
    {"data":{"id":"angiotensinogen","label":"Angiotensinogen (liver)"}},
    {"data":{"id":"a1","label":"Angiotensin I"}},
    {"data":{"id":"ace","label":"ACE (lungs)"}},
    {"data":{"id":"a2","label":"Angiotensin II"}},
    {"data":{"id":"vaso","label":"Vasoconstriction"}},
    {"data":{"id":"aldo","label":"Aldosterone"}},
    {"data":{"id":"bp","label":"Blood pressure up"}},
    {"data":{"source":"angiotensinogen","target":"a1"}},
    {"data":{"source":"renin","target":"a1"}},
    {"data":{"source":"a1","target":"a2"}},
    {"data":{"source":"ace","target":"a2"}},
    {"data":{"source":"a2","target":"vaso"}},
    {"data":{"source":"a2","target":"aldo"}},
    {"data":{"source":"vaso","target":"bp"}},
    {"data":{"source":"aldo","target":"bp"}}
  ],
  "layout":{"name":"breadthfirst","directed":true}
}