Do polcalcins from different pollen sources show different IgE reactivity?
Grass polcalcin probably contains more epitopes than polcalcins from other pollen sources. Grass pollen could be responsible for sensitization to polcalcin and grass pollen immunotherapy is likely to be an option for polcalcin hypersensitive patients.
The increase in the ratio of clinical to hotel expenditures following publication of the report card suggests that nursing homes responded as expected to the changes in the elasticity of demand with respect to clinical quality brought about by the public reporting of clinical quality measures. The response was stronger among nursing homes facing stronger incentives.