How many are there in a book? http://www.afsbt.org/index.php/where-to-buy-griseofulvin grifulvin v  Japan and the Koreas are the most racially homogenous countries on earth. But today, 3.5 percent of domestic marriages in Japan are between Japanese and foreigners (up from 2.1 percent in 1987). What hurdles do mixed race Japanese face?