References
- Sandstrom, C. (1938) Peritendinitis calcarea. A common disease of middle life: Its diagnosis, pathology, and treatment. Amer. J. Roentgenol, 40, p. 1.
- Sandstrom, C. (1951) Calcifications of the intervertebral discs and the relationship between various types of calcifications in the soft tissues of the body. Acta radiol, 36, p. 217.