All of the following is true of Mexice's health care system EXCEPT that
_(_())_(_())it is a three-tiered system.
_(_())_(_())membership in the government-ran heals insuraset propram is free for the poorest 20% of Mexicans.
_(_())_(_())ment fostorn are calarled poversmenl employees.
_(_())_(_())milliees of Mexicans cannot enrell in the governmat ras hala issumee program because they lack birth certificales
_(_())_(_())most Mexicans pay oely umall copayments and fros for hould care.