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: ["Disease", "Chemical"].

Please return the output as a JSON object of the format: {"Chemical" : ["Naloxone", ...], "Disease" : ["Hypotensive", ...]}. 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:

Hypersensitivity immune reaction as a mechanism for dilevalol-associated hepatitis. OBJECTIVE: To assess lymphocyte reactivity to dilevalol and to serum containing putative ex vivo dilevalol antigens or metabolites in a case of dilevalol-induced liver injury. PATIENT: A 58-year-old woman with a clinical diagnosis of dilevalol-induced liver injury. METHODS: Peripheral blood mononuclear cells collected from the patient were cultured in the presence of a solution of dilevalol and also with sera collected from a volunteer before and after dilevalol intake. A similar protocol was performed with lymphocytes from a healthy subject. RESULTS: No lymphocyte proliferation was observed either in the patient or in the healthy volunteer in the presence of dilevalol solutions. A significant proliferative response to serum collected after dilevalol intake was observed in the case of the patient compared with the proliferative response to the serum collected before the drug intake. No reactivity was found when lymphocytes from the healthy subject were tested under similar conditions. CONCLUSIONS: The methodology used allowed the detection of lymphocyte sensitization to sera containing ex vivo-prepared dilevalol antigens, suggesting the involvement of an immunologic mechanism in dilevalol-induced liver injury.
{"Chemical": ["dilevalol"], "Disease": ["liver injury", "Hypersensitivity", "hepatitis"]}