Citations for

1	PRRG3, PRRG4, PRRG1, PRRG2
	Identification of two novel transmembrane gamma-carboxyglutamic acid proteins expressed broadly in fetal and adult tissues.
	Kulman JD, Harris JE, Xie L, Davie EW.
	Proc Natl Acad Sci U S A 98(4):1370-5. 2001