The CPIC guideline includes RYR1 variants assigned a Allele Clinical Functional Status of Normal function, Uncertain function, and Malignant Hyperthermia associated (see the "RYR1_allele_functionality_reference" file). A translation of Allele Function combinations to Phenotype is available in the "RYR1_phenotypes" file. It might be possible that a subject could have more than 2 RYR1 variants and this RYR1_Diplotype_Phenotype_Table is a representation of possible RYR1 genotypes considering the two functionally most impacted RYR1 variants.