levels of 5-hydroxyindoleacetic acid , indoleacetic acid and total indoles were determined in the urine of 23 patients with systemic scleroderma and 7 patients with cutaneous scleroderma , before and after peroral loading with l-tryptophan ( 0-1 g/kg body weight ) .
C0036421
systemic scleroderma
C0011644
scleroderma