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: ["Outcome", "Participant", "Intervention"].

Please return the output as a JSON object of the format: {"Participant" : ["patients with COPD", ...], "Intervention" : ["Atenolol", ...], "Outcome" : ["blood pressure", ...]}. 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:

Bioequivalence evaluation of a fixed dose combination lamivudine + stavudine tablet with concurrent administration of lamivudine tablet and stavudine capsule in healthy volunteers . The study was designed to compare the rate and extent of absorption of a fixed dose combination tablet of lamivudine ( CAS 134678-17-4 ) and stavudine ( CAS 3056-17-5 ) with the concurrent administration of lamivudine tablet and stavudine capsule in 24 healthy volunteers under fasting conditions . The volunteers were randomly assigned to the test or reference treatment , with the two treatment periods separated by a washout period of at least 7 days . Plasma samples were analyzed for both analytes lamivudine and stavudine by a validated analytical method . Since the 90 % confidence intervals for the " test/reference " mean ratio of the In-transformed pharmacokinetic variables C ( max ) AUC ( 0-t ) and AUC ( 0-infinity ) were clearly within the conventional bioequivalence range of 80 % to 125 % , the two treatments were considered bioequivalent . The safety profiles of both the test and reference formulations were comparable .
{"Intervention": ["stavudine capsule", "lamivudine tablet", "lamivudine + stavudine", "lamivudine ( CAS 134678-17-4 )", "stavudine", "lamivudine", "stavudine ( CAS 3056-17-5 )"], "Outcome": ["test/reference", "C ( max ) AUC ( 0-t ) and AUC ( 0-infinity )", "Plasma samples", "safety profiles", "rate and extent of absorption", "\""], "Participant": ["under fasting", "24"]}