Facts: - strokes: backstroke and medley - birth date: 18 december 1978 - fullname: maria carlos martins dos santos - club: gesloures Based on these bullet points, write a short biography describing the life of maria santos -lrb- swimmer -rrb- .
A:
maria carlos martins dos santos -lrb- born december 18 , 1978 -rrb- is a retired female backstroke and medley swimmer from portugal , who competed for her native country at the 1996 olympic games in atlanta , georgia .