A disease may undergo variations.Logical formLearned from15 sentences. A ratio may undergo a variation.Logical formLearned from15 sentences. Variations can be in characteristics.Logical formLearned from15 sentences. Persons may have variations.Logical formLearned from15 sentences. Relation can be to a variation.Logical formLearned from15 sentences. A variation can be in results.Logical formLearned from15 sentences. Regional variations can be strong.Logical formLearned from15 sentences. Persons may observe variation.Logical formLearned from15 sentences. Variation can be in coverage.Logical formLearned from15 sentences. Data may show variation.Logical formLearned from15 sentences. Variations can be in (payment rates).Logical formLearned from15 sentences. A variation can be abnormal.Logical formLearned from15 sentences. Variations can be in velocity.Logical formLearned from15 sentences. Variations may be preserved.Logical formLearned from15 sentences. A variation can be in properties.Logical formLearned from15 sentences.