[THE DURATION OF STABILITY OF PETRAGNANI'S INTEGRAL ANATUBERCULIN (P.I.A.)].
D006168:Guinea Pigs; D012106:Research; D014374:Tuberculin Test; D014376:Tuberculosis / Q000276:immunology*
EXPERIMENTAL LAB STUDY; GUINEA PIGS; TUBERCULIN TEST; TUBERCULOSIS IMMUNITY
SULLA STABILIT'A NEL TEMPO DELL'ANATUBERCOLINA INTEGRALE PETRAGNANI (A.I.P.)