Portable respiration apparatus ready for bedside use with subjects at the International Young Men’s Christian Association College, Springfield, Massachusetts.
Benedict and Tompkins, Boston Med. and Surg. Journ., 1916
Portable respiration apparatus ready for bedside use with subjects at the International Young Men’s Christian Association College, Springfield, Massachusetts.
Benedict and Tompkins, Boston Med. and Surg. Journ., 1916