Dr. Hiroshi Ishikawa believes there is no one better qualified than him to treat the patients he sees.

Some travel for up to two hours to visit the 68-year-old at Suzushiro Clinic in Tokyo's Nerima Ward, and lines form before it opens at 9 a.m. on his consultation days.

Ishikawa's patients are "war orphans" — Japanese left behind in China as children after World War II — and their offspring. Ishikawa, who was born in China to a Chinese father and a Japanese mother who stayed on after the war, is able to speak to his patients in Chinese and can understand the struggles they face in their new lives.