THURSDAY, June 13 (HealthDay News) -- If you hear that a friend's beloved family member has joined a clinical trial for cancer treatment, don't assume the patient is human.

THURSDAY, June 13 (HealthDay News) -- Three of every 20 flexible endoscopes used to examine patients' gastrointestinal tracts and colons were improperly cleaned, a new study finds.

THURSDAY, June 13 (HealthDay News) -- Newly identified genetic variations may help predict which women will respond to breast cancer prevention therapy, a new study suggests.

WEDNESDAY, June 12 (HealthDay News) -- Researchers have found a gene they say can help identify patients facing aggressive liver cancer, and may prove key to their future treatment.

TUESDAY, June 11 (HealthDay News) -- While the number of women dying from breast cancer is decreasing, mammography screening can't take the credit, according to a new study from England that looked at 40 years of data.

TUESDAY, June 11 (HealthDay News) -- Nearly all adult survivors of childhood cancer have at least one chronic health problem, according to a new study.

TUESDAY, June 11 (HealthDay News) -- People with chronic obstructive pulmonary disease (COPD) who have signs of chronic inflammation in their blood are more likely to have flare-ups of the lung disease than those who do not, a large new study shows.

MONDAY, June 10 (HealthDay News) -- Men with prostate cancer may boost their survival chances if they replace animal fats and carbohydrates in their diet with healthy fats such as olive oils, nuts and avocados, new research suggests.

MONDAY, June 10 (HealthDay News) -- Reducing the number of unnecessary and high-dose CT scans given to children could cut their lifetime risk of associated cancers by as much as 62 percent, according to a new study.

SUNDAY, June 9 (HealthDay News) -- For many Americans, summer just wouldn't be the same without a backyard barbecue. However, the blackened meats and smoky flavor that come with grilling could put your health at risk, experts caution.