11. So these new drugs erode accepted distinctions between worrisome abnormalities and the normal variations of human life. 12. It involves separating pathology from normal variation . 13. There exists a normal variation in the relationship of the cementum and the enamel at the cementoenamel junction. 14. Other conditions, like hyperactivity, are likely also just " normal variations in human behavior ", not mental illness. 15. Second, it is always difficult to distinguish long-term trends from the normal variations that occur in a turbulent climate. 16. This is also true of the normal variations in skin, hair and eye color encoded on the human MATP gene. 17. It's back does appear to be a bit more gray than usual, but that's probably still within the normal variation . 18. Kids with autism show variability in their day-to-day behavior, and it would be easy to attribute normal variations to the secretin. 19. I've heard more than one stats person say that you need 30 samples to be able to describe a normal variation . 20. However, independent experts found that the increase was with within possible normal variations and police found no physical evidence against her.
