In their analysis, the absence of observed CgA(+) cells was recorded as “negative.” When the number of CgA(+) cells was less than 1 per mm2 in the section, it was designated as “moderate positivity,” and when the number exceeded 1 per mm2, it was designated as “extensive positivity.” In that study of 350 cases, CgA(+) tumor cells were found in 30% of the cases, with 21% showing moderate positivity and 9.0% having extensive positivity. The gene discussed is CGA; the disease is neoplasm.