You will be shown an abstract from a biomedical research paper. Given this abstract, your task is to extract all unique entities of the following types: ["AnatomicalEntity"].

Please return the output as a JSON object of the format: {"AnatomicalEntity": ["tumor cells", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

Protection from experimental ocular herpetic keratitis by a heat-killed virus vaccine.
New Zealand white rabbits were given limbal inoculations of a heat-killed suspension of herpes simplex virus (HSV) in a lysate of human embryonic kidney cells. At intervals of four to 14 days, the animals were challenged by intrastromal inoculation with 10,000 plaque-forming units of viable HSV. Epithelial keratitis, disciform edema, and necrotizing keratitis with neovascularization of the cornea developed in control animals. Epithelial keratitis and corneal edema also developed in the immunized animals during the first week after virus challenge, but these symptoms rapidly resolved during the following weeks. The absence of iritis, neovascularization, and necrotizing keratitis in the corneas of the immunized animals was particularly striking.
{"AnatomicalEntity": ["limbal", "ocular", "Epithelial", "cornea", "disciform edema", "corneas", "corneal edema", "intrastromal", "embryonic kidney cells"]}