ALBAY, A., KISA, Özgül, BAYSALLAR, M., BAŞUSTAOĞLU, A. and GÜN, H. (1994) “Determination of IgG by Elisa Method Using PPD as the Antigen in Sera of Patients With Pulmonary Tuberculosis”, European Journal of Therapeutics, 5(1), pp. 71–76. doi: 10.58600/eurjther.1994-5-1-1411-arch.