References
- Love and Camp (1937) J. Bone and Joint
- Hampton and Robinson (1936) Am. J. Roentg.
- Bruun (1938) Nordisk Med. Tidskrift
- Knutsson (1939) Acta Rad.
- Lindgren (1942) Nordisk Medicin
- Deucher (1940) Acta Rad.
- Brocher (1942) Fortschr. a. d. Geb. d. Rtg. strahl.
- Olivecrona (1941) Acta Rad.