This paper demonstrates that the K1 variant contains a T193M mutation. Out of 42 individuals with known phenotype, 6 (?) were K1 homozygous (12 K1 or K2 homozygous), 6 were K1 heterozygous (K1/K2), and the remaining 24 were known to have other alleles. The T194M variant tracked perfectly. We estimate this as case+:18, case-:0, control+: 0, control-:54, giving a significance of 2 * 10^-17. An equivalent significance is reached by 19, 1, 1, 69, giving an odds ratio estimate of 1,311.