Friis J, Jensen E M, Karle A K
Acta Radiol Diagn (Stockh). 1979;20(6):928-32. doi: 10.1177/028418517902000607.
A case with calcified periarthritis at peripheral sites and calcification in intervertebral discs gives support to the perception of a distinct disease entity as proposed by SANDSTROM. The possible significance of genetic factors is discussed.