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has_indication

Arguments

A has_indication relationship associates a intervention, drug or investigation to a condition that indicated the need for that entity.

First argument type Second argument type Relationship type
Investigation Condition has_indication
Intervention Condition has_indication
Drug or device Condition has_indication

Entities do not have to have relationships

Interventions, investigations and drugs are not required to take part in a has_indication relationship: some will have no condition specified.

Inferring relations with clinical knowledge

Indications that require clinical knowlege will be annotated.

has_indication and multiple conditions

An intervention or drug may have several indications. One has_indication relationship will be created for each condition.

Investigations and has_indication

Investigations will not generally have an explicitly stated has_indication relationship. Occasionally, however, the indication for an investigation is stated in the text. Often, these are stated as prepositional phrases.