AhlbomH. E.: Simple achlorhydric anaemia and the Plummer-Vinson's syndrome as an important predisposing factor to cancer of the mouth, pharynx and oesophagus in women. Acta radiol.18 (1937), 514.
2.
GidlundÅ. S.: A new apparatus for direct cineradiography. Acta radiol.32 (1949), 81.
3.
JacobssonF.: Carcinoma of the hypopharynx. Acta radiol.35 (1951), 1.
4.
LindgrenE.: An apparatus for radiography in immediate connection with radioscopy. Acta radiol.22 (1941), 383.
5.
WaldenströmJ.KjellbergS. R.: The roentgenological diagnosis of sideropenic dysphagia (Plummer-Vinson's syndrome). Acta radiol.20 (1939), 618.