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Search the literature 1793, which met the inclusion criteria of literature has 716, involving symptoms 2694, summarized, the occurrence frequency of symptoms in more than 30 times total, 34 species

Retrieve documents 1793, document 716 articles which met the inclusion criteria, involving symptoms of 2,694, discussed later, frequency of occurrence in the symptoms of more than 30 times, a total of 34 species,

Retrieval literature 1793, in which tallies integrates the standard the literature to have 716, involves symptom 2694, after carries on the induction summary, appears the frequency to altogether have 34 kinds in 30 above symptoms,

1793 literature retrieval, of which 716 are consistent with the literature into a standard feature article 2694, involving symptoms, summarized in frequency after more than 30 times the symptoms, there were 34 such

Retrieve documents 1793, document 716 articles which met the inclusion criteria, involving symptoms of 2,694, discussed later, frequency of occurrence in the symptoms of more than 30 times, a total of 34 species,