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Amazon.com: MTHFR-Gene Methylation Test Kit. 1-on-1 Live Expert Support by Phone 7 Days A Week, MTHFR C677T and MTHFR A1298C Gene Variants for Methylation Analysis. Results in 2-5 Days. Ages 0+ : US$ 27.04 Min. order: 1 piece ★★★★★ 4.3 (18 reviews) Sold : Login>>