Correction: BMC Cancer 22, 1334 (2022)

https://doi.org/10.1186/s12885-022-10442-5

Following publication of the original article [1], the authors reported errors in Figs. 2 and 3. The incorrect version of the figures were used. figuresThis correction article includes the updated versions of both figures.

Fig. 2
figure 1

Forest plots of subgroup analyses of colony forming unit counts in aerobic culture (A) and anaerobic culture (B)

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Fig. 3
figure 2

Relative abundance of bacterial genera from needle wash samples. A total of 203 bacteria in the chlorhexidine mouthrinse group and 289 bacteria in the usual care group were identified by matrix-assisted laser desorption ionization time-of-flight mass spectrometry. The dotted boxes represent the genera of oropharyngeal commensal bacteria

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Further to this, the authors would like to correct the following:

1) “mouthrinse” in the article title should be in lowercase

2) Methods, Procedures, second paragraph: The sentence should read: "Following mediastinal evaluation using EBUS, TBNA was performed at the designated lymph nodes (LNs) or masses with a dedicated 22-gauge aspiration needle.", instead of "Following mediastinal evaluation using EBUS-TBNA was performed at the designated lymph nodes (LNs) or masses with a dedicated 22-gauge aspiration needle."

"EBUS-TBNA → EBUS, TBNA"

3) Results, Characteristics of participants and procedure, third paragraph: The sentence “Cytopathology examinations revealed that 24.5 and 17.9% of the LNs or masses were malignant in the chlorhexidine group and usual care group, respectively.” should be corrected to: “Cytopathology examinations revealed that 24.5% and 17.9% of the LNs or masses were malignant in the chlorhexidine group and usual care group, respectively.”

The '%' sign was omitted after the number 24.5.

"24.5 → 24.5%"

4) In the abbreviations section, the semicolon was duplicated before the entry “EUS-B-FNA”.

The original article [1] has been corrected.