Constant access to the circulation and intestinal tract of the unrestrained rat.
D000818:Animals; D001835:Body Weight; D002404:Catheterization; D004750:Enteral Nutrition / Q000009:adverse effects / Q000379:methods*; D005774:Gastrostomy; D007238:Infarction / Q000209:etiology; D007668:Kidney / Q000098:blood supply; D051381:Rats