Response to: ‘Pitfalls of antinuclear antibody detection in systemic lupus erythematosus: the positive experience of a national multi-center study’ by Pregnalato et al

We appreciate the comments by Pregnolato et al 1 on our original paper2 and subsequent correspondence in the journal.3 4 The data presented are very interesting and suggest that, under certain circumstances, results of antinuclear antibody (ANA) testing with samples from patients …