Current medical research and opinion
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Multicenter Study
Symptomatic dermographism in Chinese population: an epidemiological study of hospital-based multicenter questionnaire survey.
There are few epidemiological studies on SD in China. This study aims to clarify the epidemic distribution characteristics of SD in China and provide ideas and clues for the prevention and treatment of the disease. ⋯ Environmental factors may affect the occurrence of SD, which may have a similar etiology to other types of urticaria and the cause of SD can be explored from more perspectives.