The rules for hardship distributions vary by the type of plan from which you intend to take a hardship withdrawal. What constitutes a âhardshipâ is typically set forth in the plan itself.If your 401(k), 403(b) and 457(b) plan permits hardship withdrawals, for example, the plan may permit distributions for medical or funeral expenses, but not for the purchase of a principal residence or for payment of tuition and education expenses.he rules for hardship distributions vary by the type of plan from which you intend to take a hardship withdrawal. What constitutes a âhardshipâ is typically set forth in the plan itself.
Another difference between the two is that while etiology is content to expound on origin, cause, and effect, epidemiology is an ongoing study which keeps known diseases in check while keeping a lookout for new, unidentified threats to human well-being.
epidemiology - The study of patterns of disease in a population. epidemiology - the study of the patterns, causes and control of disease in groups of people. epidemiology - Study of factors that influence the health and disease of a population and the use of this information to study diseases and improve the health of the population.