. . . . . . . "Mexican Social Security Institute" . "Mexican Social Security Institute" . "1943" . "IMSS Regional General Hospital No.1" . . "IMSS" . "Mexican Social Security Institute (IMSS)" . . "1943-01-19" . . "IMSS Zapata" . . "IMSS Headquarters" . . . . "3.35E11" . "Social Security" . "Mexican Institute for Social Security" . "360106" . . "Instituto Mexicano del Seguro Social" . . . . . "Instituto Mexicano del Seguro Social (IMSS)" . . . . . "Institute of Security and Social Services of State Workers" .