Aristolochia serpentaria (Virginia snakeroot), Aristolochia reticulata (Texas snakeroot) and in Chinese herbs such as Aristolochia fangchi and Aristolochia mandshurensis (banned in China and withdrawn from Chinese Pharmacopoea 2005; Stephania tetrandra and Magnolia officinalis do not contain aristolochic acid).
age-based rationing. Age-Based Rationing. A proposed form of rationing publicly-funded health care services, in which limits would be placed on the type and amount of such services that would be freely available to persons above a certain age.
Economically defined, healthcare rationing is simply limiting health care goods and services to only those who can afford to pay. In the United States this type of rationing affects about 15% of the population, who are either too poor to afford care or unwilling to buy care or simply uninsured. Defined by regulatory means, healthcare rationing involves restricting health care goods and services from even those who can afford to pay.