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:

Comparison of olanzapine long-acting injection and oral olanzapine : a 2-year , randomized , open-label study in outpatients with schizophrenia . We compared long-term treatment effectiveness of monthly olanzapine long-acting injection ( LAI ) with that of oral olanzapine . Outpatients with 2 or more episodes of psychotic worsening in the past 24 months with Positive and Negative Syndrome Scale total score of lower than 70 were randomized to 405 mg/4 weeks of olanzapine LAI ( n = 264 ) or 10 mg/d of oral olanzapine ( n = 260 ) for 2 years of open-label treatment . Dosing thereafter was flexible ( 150-405 mg/4 weeks of LAI vs 5-20 mg/d of oral ) . Primary outcome was time to all-cause discontinuation . At baseline , patients were clinically stable ( mean Positive and Negative Syndrome Scale total score of 57 ) . Seventeen percent of patients had been psychiatrically hospitalized in the previous 6 months , and 4.6 % were rated nonadherent in the month before study entry . The groups did not differ significantly in median time to all-cause discontinuation ( 645 days for LAI , 678 days for oral ; P = 0.61 ) , discontinuation rate ( 53.8 % for LAI , 51.2 % for oral ; P = 0.60 ) , or relapse rate ( 20.1 % for LAI , 18.5 % for oral ; P = 0.66 ) . Postbaseline psychiatric hospitalization rate was low for both groups ( 7.6 % for LAI , 9.2 % for oral ) , but mean hospitalization duration was significantly longer for oral patients ( 1.80 days [ 20 for those hospitalized ] vs 0.43 days [ 6 for those hospitalized ] , P = 0.02 ) . There were no clinically significant group differences in adverse events or safety measures . No post-injection delirium/sedation syndrome events occurred . In conclusion , olanzapine LAI and oral olanzapine were similarly effective and well tolerated for up to 2 years of treatment in patients with schizophrenia . Treatment discontinuation for olanzapine LAI was similar to that of oral olanzapine , despite the 3-hour post-injection observation period and other precautionary procedures related to risk of post-injection delirium/sedation syndrome .
{"Intervention": ["LAI", "oral olanzapine", "olanzapine LAI", "oral olanzapine .", "olanzapine", "olanzapine long-acting injection ( LAI )", "olanzapine long-acting injection"], "Outcome": ["psychiatric", "delirium/sedation syndrome", "effective", "tolerated", "schizophrenia .", "Treatment discontinuation"], "Participant": []}