[The labor chair--historical furniture or a significant renewal].

The obstetric chair--a useful piece of furniture or just a fashionable revival? This formulation could be conceived of as two hypotheses in the question form. Both need investigation and, if necessary, verification. If one hypothesis is accepted to be the truth, it can be used to refute the other. If, on the one hand, the obstetric chair is merely a historical piece of furniture which is experiencing a fashionable revival, it is of no practical importance today. If, on the other hand, it is also of obvious use nowadays, it is not only a historical piece of furniture.