1. Ankylosing spondylitis and HLA 27;BREWERTON, D.A.; HART, F.D.; NICHOLLS, A.; CAFFREY, M.; JAMES, D.C.O.; STURROCK, R.D.;Lancet,1973
2. Osteoarthropathia parathyreoipriva scleroticans;BUSCHER, V.O.N.B.;Rontgenpraxis,1948
3. Paravertebral ossification in psoriatic arthritis;BYWATERS, E.G.L.; DIXON, A.S.T.J.;Annals of the Rheumatic Diseases,1965
4. Spondylitis: a clue to hypoparathyroidism;CHAYKIN, L.B.; FRAME, B.; SIGLER, J.W.;Annals of Internal Medicine,1969
5. Hypoparathyroidism and pseudohypoparathyroidism;MOWBRAY, D.E.; R., R.; SMITH, L.L.E.W.E.L.L.Y.N.; H., S.; SYMONDS, W.L.C.;British Medical Journal,1954