Reference
- Metz O. Studies on the contraction of the tympanic muscles as indicated by changes in the impedance of the ear. Acta oto-laryng 1951; 39: 397
- Metz O. Threshold of reflex contractions of muscles of middle ear and recruitment of loudness. Arch, otolaryng 1952; 55: 536
- Pichler, Bornschein. Audiometrischer Nachweis nichtakustisch ausgelöste Reflexkontraktionen der Intraauralmuskulatur. Acta oto-laryng. 1957; 48: 498
- Thomsen K. A. The Metz recruitment test. Acta oto-laryng. 1955; 45: 544