# text.div
This code system http://hl7.org/fhir/focus-characteristic-code defines the following codes:

Code | Display | Definition
citation | Citation | Used to reference a specific article.
clinical-outcomes-observed | Observed outcomes are clinical outcomes | Used to denote a focus on clinical outcomes, ie evidence variable in role of outcome (measured variable) as observed is considered a "clinical outcome" (patient-important outcome such as mortality, symptoms, function or quality of life).
population | Population | The population of interest.
exposure | Exposure | The exposure of interest, such as an intervention.
comparator | Comparator | The comparator (intervention or control state) of interest.
outcome | Outcome | the outcome of interest.
medication-exposures | Medication exposures | Any medication exposures. A subset of exposures or interventions that are medications.
study-type | Study type | Type of research study, such as randomized trial or case-control study.

# concept[].definition
Used to denote a focus on clinical outcomes, ie evidence variable in role of outcome (measured variable) as observed is considered a "clinical outcome" (patient-important outcome such as mortality, symptoms, function or quality of life).

# concept[].definition
The exposure of interest, such as an intervention.

# concept[].definition
The comparator (intervention or control state) of interest.

# concept[].definition
Any medication exposures. A subset of exposures or interventions that are medications.

# concept[].definition
Type of research study, such as randomized trial or case-control study.