Differences in measurable biological values, characteristics, or traits, within one individual under different conditions for the individual such as fasting, season of the year, age, or state of wellness.

Synonyms: Within-Individual Biological Variation, Intra-Individual Biological Variations, Variations, Intra-Individual Biological, Within Subject Variation, Variations, Individual Biological, Variations, Within-Subject, Intra Individual Biological Variation, Variation, Individual Biological, Variation, Within-Person, Within-Person Variations, Individual Biological Variation, Variation, Intra-Individual Biological, Variation, Within-Subject, Individual Biological Variations, Within Person Variation, Within Individual Biological Variation, Biological Variation, Within Individual, Biological Variation, Intra-Individual, Biological Variations, Intra-Individual, Biological Variations, Individual, Within-Subject Variations, Biological Variation, Within-Individual, Biological Variation, Individual, Intra-Individual Biological Variation, Within-Subject Variation, Biological Variations, Within-Individual, Variations, Within-Person, Variations, Within-Individual Biological, Within-Person Variation, Within-Individual Biological Variations, Variation, Within-Individual Biological