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:

Maximal bioavailability of digoxin from tablets and oral solution in steady state . Comparison has been made between the absorption of digoxin from Lanoxin tablets and the absorption of international chemical reference substance digoxin from an oral solution . Plasma levels , areas under 24-hour plasma concentration curves and urinary excretion were similar by both formulations in steady state . 78 % of the digoxin administered was absorbed from the tablets and 76 % from the solution . Rapid dissolution in the intestinal fluids accounts for the high digoxin bioavailability of the tablets .
{"Intervention": ["digoxin", "digoxin from an oral solution .", "Lanoxin"], "Outcome": ["Maximal bioavailability", "digoxin", "Plasma levels , areas under 24-hour plasma concentration curves and urinary excretion", "digoxin bioavailability", "absorption of digoxin"], "Participant": ["Maximal bioavailability of digoxin from tablets and oral solution in steady state ."]}