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Fig. 3 | Arthritis Research & Therapy

Fig. 3

From: Needle biopsy compared with surgical biopsy: pitfalls of small biopsy in histologial diagnosis of IgG4-related disease

Fig. 3

Comparison of needle biopsy and surgical biopsy in 41 salivary gland samples. a The comparison of IgG4/HPF count and the ratio of IgG4/IgG in different biopsy method groups. b The comparison of the proportions of IgG4/HPF > 10 and IgG4/HPF > 100 between the two groups. c The difference of the diagnostic coincidence rates between the two groups with histological diagnosis categories. *P < 0.05, **P < 0.01

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