A possible unexpected and unfavorable evolution of a medical condition. Complications may include worsening of the signs or symptoms of the disease, extension of the condition to other organ systems, etc.

A more specific type of the condition, where applicable, for example 'Type 1 Diabetes', 'Type 2 Diabetes', or 'Gestational Diabetes' for Diabetes.

The substage, e.g. 'a' for Stage IIIa.

A contraindication for this therapy.

A description of the postoperative procedures, care, and/or followups for this device.

A description of the workup, testing, and other preparations required before implanting this device.

A description of the procedure involved in setting up, using, and/or installing the device.

Source of the data used to formulate the guidance, e.g. RCT, consensus opinion, etc.

Strength of the guideline's recommendation (e.g. 'class I').

Typical or recommended followup care after the procedure is performed.

How the procedure is performed.

Typical preparation that a patient must undergo before having the procedure performed.

The algorithm or rules to follow to compute the score.

The type of the medical article, taken from the US NLM MeSH publication type catalog. See also [MeSH documentation](http://www.nlm.nih.gov/mesh/pubtypes.html).

Expected or actual outcomes of the study.

Any characteristics of the population used in the study, e.g. 'males under 65'.

Range of acceptable values for a typical patient, when applicable.

The phase of the clinical trial.

An aspect of medical practice that is considered on the page, such as 'diagnosis', 'treatment', 'causes', 'prognosis', 'etiology', 'epidemiology', etc.

Specifies specific carrier(s) requirements for the application (e.g. an application may only work on a specific carrier network).

Languages in which subtitles/captions are available, in [IETF BCP 47 standard format](http://tools.ietf.org/html/bcp47).

The movement the muscle generates.

The International Standard Musical Work Code for the composition.

The type of composition (e.g. overture, sonata, symphony, etc.).