[The provocation test in extrinsic allergic alveolitis].

The Authors review the use of provocation test, added to other diagnostic procedures, in the study of extrinsic allergic alveolitis (E.A.A.). In the light of the still present uncertainty on the pathogenesis of the disease and on the ethics of these tests, the Authors assert that the provocation tests in E.A.A. are inadvisable because on the one hand they are uncertain as regards execution and evaluation and on the other hand they are dangerous for the patient.