1. Dermatology in General Medicine;Fitzpatrick TB,1987
2. Computed tomography reveals thickened subcutaneous tissue in scleroderma;Matsuura K;Br J Dermatol,1997
3. Textbook of pediatric rheumatology;Cassidy JT,2001
4. Textbook of pediatric rheumatology;Nelson A,2001
5. Scleroderma in children;Uziel Y;Pediatr Clin North Am,1995