mixing medications may cause unwanted reactions.

poor nutrition can cause a number of related health problems.

the antibiotics were used to treat a number of infectious diseases.

prolonged deprivation of oxygen can cause brain damage.

masks and gloves are worn to limit exposure to toxins.

many health insurance companies require a checkup before initiating coverage.

visual disturbances may be a symptom of eye damage.

research-based pharmaceutical companies are searching for new cancer treatments.