Verma N P, Gambhir S S, Mathur J S
Indian J Ophthalmol. 1989 Jul-Sep;37(3):155-6.
Blood Histaminase estimations were done in 42 cases of phlyctenulosis and 25 normal subjects. Significantly higher level of blood Histaminase was found in patients of phlyctenulosis, which may be a consequence of its induction secondary to increased release of histamine in the early phase of disease.