Long-range LD can confound genome scans in admixed populations.
Price AL, Weale ME, Patterson N, Myers SR, Need AC, Shianna KV, Ge D, Rotter JI, Torres E, Taylor KD, Goldstein DB, Reich D. Long-range LD can confound genome scans in admixed populations. Am J Hum Genet. 2008 Jul; 83(1):132-5; author reply 135-9.