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Health technology is defined by the World Health Organization as the “application of organized knowledge and skills in the form of devices, medicines, vaccines, procedures, and systems developed to solve a health problem and improve quality of lives”. This includes pharmaceuticals, devices, procedures, and organizational systems used in the healthcare industry, as well as computer-supported information systems.
The verb to be in “Health technology is defined by” (line 1) is in the simple past tense and expresses an idea occurred in the past.