Transmembrane domain length variation in the evolution of major histocompatibility complex class I genes.
Proc Natl Acad Sci U S A. 1991 Jun 1;88(11):4666-70. doi: 10.1073/pnas.88.11.4666.
Proc Natl Acad Sci U S A. 1991.
PMID: 2052550
Free PMC article.