FILE - This Wednesday, May 13, 2015, file photo, shows the North American headquarters of Bayer Healthcare in Whippany, N.J. The Food and Drug Administration announced Monday, Feb. 29, 2016, it plans to warn consumers more strongly about Essure, a contraceptive implant that drew thousands of complaints from women reporting chronic pain, bleeding and other health problems. The FDA is requiring manufacturer Bayer to conduct studies of the device to further assess its risks in different groups of women. (AP Photo/Julio Cortez, File)

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