(which, as always in this journal, stands for Public Service Announcement rather than Prostate-Specific Antigen.)

November is Marrow Awareness month, and the National Marrow Donor Program has received a grant to cover the costs of tissue-typing for new registrants. (Usually it costs $52 to register - sometimes that's paid for by people organizing drives, but sometimes not, so this is a good opportunity if you're poor but want to register.)  Here's a brief description of what's involved in being a donor.

You can register by mail - they'll send you a kit to take a swab of your cheek cells. I think you may have to use that link to do it for free.

And three cheers for Otsuka America Pharmaceutical, which I've never heard of before, for sponsoring it.