Roy sent me this article which calls for bone marrow donors whose ideal ethnic background is 3/4 Caucasian and 1/4 Sino-Asian.
Any person whose ethnic background is a mix of Asian and Caucasian, and is in good health with no history of cancer or major illness, and is between the ages of 18 and 60, is a potential donor for Nick. Expanding on the initial information, one does not need to be 75% Caucasian and 25% Asian — any potential mix could work. While the most likely match would be from a person who is 75% Caucasian and 25% Japanese, it is absolutely possible that other combinations of Caucasian-Asian background in different proportions could work. The Asian background should be Sino-Asian, rather than Indo-Asian. Finding an ideal match with all of Nick’s markers is very difficult, and we do not want to exclude any potential donors.
More information here. This is a case in which I wish iChamploo’s reach was more extensive and I hope a donor is found soon.