The diseases have been categorized as patches (cause dead spots or patches in the lawn), rings (cause rings of dead or affected grass), or leaf blight (affect individual blades of grass, often over a wide area and no distinct patch or ring pattern may be noticeable).
PVR, abbreviation for pulmonary vascular resistance. To measure changes in blood vessel size or changes in gas volume in the lungs to assist in diagnosing diseases such as deep vein thrombosis (DVT), chronic obstructive pulmonary disease (COPD), and some peripheral vascular disorders. Veins, arteries, and lungs. None.
The Purchaser Value Network (PVN) is an initiative of and for purchasers that aims to accelerate the adoption of high value healthcare delivery and payment models through policy advocacy, education and purchaser engagement. The current healthcare system is not optimally designed to achieve the best outcomes for patients.