SSB and scleroderma: Anti-Smith and double-stranded DNA (ds-DNA) antibodies (Ab) were positive, whereas anti-histone Ab, ribonucleic protein (RNP) Ab, RNA polymerase 3 IgG Ab, Ro/SSA and La/SSB Ab, Scleroderma (SCL) 70 Ab, rheumatoid factor (RF), anti-neutrophil cytoplasmic antibody (ANCA), anticardiolipin Ab, thyroid antibodies, and beta-2 glycoproteins antibodies were negative.