Republicans allege two members of Michigan's Stryker family may have links to a fraud case in South Dakota involving Medicare and the Stryker Corp. Stryker is a medical products company. Jon Stryker has contributed to groups protecting gay rights. Anti-gay rights U.S. Sen. Wayne Allard, R-Colo., has called for an investigation into the fraud case to see if it extends further... The fraud case reportedly involves a medical clinic in South Dakota and the Stryker Corp. aggreeing to repay Medicare $345,000. The government says the clinic took money from the Stryker Corp. in exchange for using the company's orthopedic products....