CHICAGO (Reuters) - African-American women who contract breast cancer before reaching menopause are more than twice as likely as white women to have an aggressive, deadlier form of the disease, a study said on Tuesday.

GENEVA (Reuters) - The death toll from a cholera outbreak in Angola has topped 1,500 with more than 41,000 cases reported, the World Health Organization (WHO) said.

NEW YORK (Reuters) - Newly released records show that Guidant Corp. drafted a letter last year to tell doctors about significant defects in the company's heart devices, but they were never sent, a report said on Wednesday.

PLAYEN, Indonesia (Reuters) - Dozens of earthquake survivors, including women with babies in batik slings, lined up on Indonesia's Java island on Wednesday to be vaccinated against tetanus and measles as many complained aid was slow in arriving.

NEW YORK (Reuters Health) - While providing care for others, many caregivers seem to forget about their own well-being, including their oral health, new study findings suggest.

NEW YORK (Reuters Health) - For hemodialysis patients with very poor circulation in their legs, spinal cord stimulation reduces pain and increases quality of life, according to Italian researchers.

BOSTON (Reuters) - Researchers at Harvard University said on Tuesday they have started efforts to clone human embryos as a source of valued stem cells, using only private money to bypass federal restrictions on such work.

NEW YORK (Reuters Health) - The prescription of antipsychotic medications for children and adolescents in the US increased nearly 6-fold between 1993 and 2002, according to survey results.

LONDON (Reuters) - British doctors plan to climb Mount Everest to study the impact of low oxygen levels on the body, a project they hope will help critically ill patients.

WASHINGTON (Reuters) - Sperm declines in quality as men age, swimming more slowly and becoming more genetically defective, U.S. researchers reported on Monday.