The second stage of Meaningful Use requires that healthcare providers use C-CDA document exchange regularly in care transitions and the CCD has been identified as the most appropriate document for this purpose.
The part of the brain that interprets smell is the olfactory bulb.  This brain structure is usually above the nasal cavity and below  frontal lobe.
Olfactory and gustatory perception is less clear and researched - smell assumed pyriform cortex, the amygdala, and the entorhinal cortex; taste insular cortex entirely related to taste and somatosensory area sensitive to tactile stimuli and is probably responsible for the localization of tastes on the tongue (those who taste vine roll it on their tongue).