A district comprises three counties. Patients do not develop diseases. Patients are not diagnosed. In evaluating an I.Q. score several factors, e.g., socioeconomic level, must be considered. Socioeconomic level, e.g., is a factor to be considered.
Etiology encompasses all the possible causes of a disease.
The patient felt cold. The author believed that the theory was sound. For example, use epidemiologic, geographic, serologic, logistic, immunologic, toxicologic, anatomic. Author's preference, however, may be followed, e.g., biological warfare. We inoculated each mouse with a 0.5-ml aliquot.