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Background Tonsillectomy and steroid pulse (TSP) therapy was proposed as a curative treatment for IgA nephropathy by Hotta et al. (Am J Kidney Dis 38:736–742, 2001) based on data that about 50% of patients achieved clinical remission (CR) of urinary abnormalities. Materials and methods As a primary survey, we sent a questionnaire and letter to 848 hospitals in Japan, each of which employed a Fellow...
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