: any of a subphylum (Vertebrata) of chordates that comprises animals (such as mammals, birds, reptiles, amphibians, and fishes) typically having a bony or cartilaginous spinal colum which replaces the notochord, a distinct head containing a brain which arises as an enlarged part of the nerve cord, and an internal usually bony skeleton and that ...
Small, compact and neat, LightShot is a screen-capturing program designed to offer higher-quality screen shots compared to what Windows offers with stock functions. How LightShot Works.
Rapid Plasma Reagin â NHANES 2001-2002 3 1. SUMMARY OF TEST PRINCIPLE AND CLINICAL RELEVANCE The rapid plasma reagin (RPR) 18-mm circle card test is a macroscopic, nontreponemal flocculation card test used to screen for syphilis (1 -4). The antigen is prepared from a modified Venereal Disease Research Laboratory (VDRL) antigen suspension containing choline chloride to