First Iron Lungs (Artificial Respirators), Part 1 of 2, Silent
NursesOfLosAngeles.com -- Four early artificial respirators: The Drinker (iron lung); The Both; The Paul-Bragg, The Burnstall
NursesOfLosAngeles.com -- Four early artificial respirators: The Drinker (iron lung); The Both; The Paul-Bragg, The Burnstall