Source: https://www.researchgate.net/profile/Alain-Ghio/publication/32222711_Interet_de_la_tussometrie_dans_les_paralysies_laryngees_unilaterales/links/0fcfd50c06cc91eee1000000/Interet-de-la-tussometrie-dans-les-paralysies-laryngees-unilaterales.pdf