Association of K121Q polymorphism in ENPP1 (PC‐1) with BMI in Caucasian and African-American adults. - Matsuoka,N.; Patki,A.; Tiwari,H.K.; Allison,D.B.; Johnson,S.B.; Gregersen,P.K.; Leibel,R.L.; Chung,W.K. (Int J Obes (Lond), 2006)