You will be shown inclusion or exclusion criteria for a clinical trial. Given these criteria, your task is to extract all unique entities of the following types: ["Observation", "Condition", "Procedure", "Drug", "Temporal", "Multiplier", "Qualifier", "Negation", "ReferencePoint", "Scope", "Value", "Mood", "Device", "Visit", "Measurement", "Person"].

Please return the output as a JSON object of the format: {"Condition" : ["breast cancer", ...], "Device" : ["ports", ...], "Drug" : ["Atenolol", ...], "Measurement" : ["blood pressure", ...], "Mood" : ["suspected", ...], "Multiplier" : ["more than two", ...], "Negation" : ["no", ...], "Observation" : ["history", ...], "Person" : ["male", ...], "Procedure" : ["surgery", ...], "Qualifier" : ["severe", ...], "ReferencePoint" : ["enrollment", ...], "Scope" : ["infection", ...], "Temporal" : ["one day", ...], "Value" : ["50%", ...], "Visit" : ["ICU", ...]}. 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:

Age < 20 or > 35 years.
Congenital uterine malformation.
Multifetal pregnancy.
Known major fetal structural or chromosomal abnormality.
Known allergy or contraindication (relative or absolute) to progesterone therapy.
Presence of contraindication to cervical cerclage.
Medical conditions complicating pregnancy.
Vaginal bleeding.
{"Condition": ["chromosomal abnormality", "Congenital uterine malformation", "Vaginal bleeding", "Multifetal pregnancy", "fetal structural", "allergy", "contraindication", "Medical conditions"], "Device": [], "Drug": [], "Measurement": [], "Mood": [], "Multiplier": [], "Negation": [], "Observation": [], "Person": ["Age"], "Procedure": ["progesterone therapy", "cervical cerclage"], "Qualifier": ["major", "absolute", "relative", "complicating pregnancy"], "ReferencePoint": [], "Scope": ["allergy or contraindication", "\u003c 20 or \u003e 35 years", "fetal structural or chromosomal abnormality", "relative or absolute"], "Temporal": [], "Value": ["\u003e 35 years", "\u003c 20"], "Visit": []}