Another Korean victim of Japan's wartime sexual slavery has died.<br /> Choi Duk-nye passed away of natural causes on Monday.<br />She was 97 years old.<br />Her death means there are now just 28 registered survivors who are still alive. <br />Three other victims have died so far this year, among the 238 women who registered with the South Korean government.<br />The victims are still awaiting a sincere apology from the Japanese government.<br />Historians estimate up to 200-thousand women, mostly from Korea, were forced to work in front-line brothels for Japanese troops during World War II. <br />
