The World Health Organization has warned that the incidence of cancer is growing among Cambodians.
Phnom Penh has around 5,000 families in slum areas with free access to safe water.
Iron deficiencies can be treated with ferrous sulfate, 324 milligrams once or twice per day.
A person with anemia should avoid tea, coffee or milk with meals as they interfere with the absorption of iron.
Anemia is a condition in which the body does not have enough healthy red blood cells, which bring oxygen to body tissues.
More than 700 people sought the free services of the doctors and medical staff on the first day, Monday.
The health service provided by more than 50 doctors will include dental care and out-patient treatment.
Cambodia currently spends around $50 million per year for its HIV and AIDS programs, with about 90 percent funded by donors.
Calmette hospital is home to many of the most seriously injured.
To prevent IBS, the doctor says to stay away from dairy products, cabbage, radishes and onions.
Frieden also called for wider implementation of a World Health Organization policy package.
One in five Americans has irritable bowel syndrome.