Which entertainment union, abbreviated WGA, went on strike in 1981, 1985 and 1988?

Which 1963 treaty, abbreviated NTBT, was signed by the U.S., the USSR and the U.K.? Which nation, abbreviated PRC, was founded by Mao Zedong in 1949? Which Australian newspaper, abbreviated SMH, was first issued in 1831? Abbreviated SPR, what is the U.S. government's emergency store of oil created in the 1970s? Abbreviated TSE, which is Canada's largest stock exchange? Which military college, abbreviated VMI, first admitted women in 1997 after a Supreme Court ruling? On "ER", doctors Abby Lockhart, Luka Kovač and Neela Rasgotra worked in which city? ABC dealt with thorny kids' issues from 1972 in which occasional afternoon dramas?