public AlleleFrequencyType alleleFrequencyType() {
		double maf = maf();
		if (maf <= ALLELE_FEQUENCY_LOW) return AlleleFrequencyType.Rare;
		if (maf <= ALLELE_FEQUENCY_COMMON) return AlleleFrequencyType.LowFrequency;
		return AlleleFrequencyType.Common;
	}