Venus Williams played only two matches this year due to injuries and illness . It 's `` a major women 's health problem , '' says Frederick B. Vivino , M.D. , associate professor of clinical medicine at the University of Pennsylvania and chief of rheumatology at Penn Presbyterian Medical Center , in Philadelphia . As many as 1 million Americans have Sjögren 's syndrome . Ninety percent of the people with the condition are women .
Venus Williams played only two matches this year due to injuries and illness . As many as 1 million Americans have Sjögren 's syndrome . Ninety percent of the people with the condition are women .