Fig. 1

a Length distribution of MWCNT-A in the lung alveoli and mediastinal lymph nodes. b Length distribution of MWCNT-B in the lung alveoli and mediastinal lymph nodes
a Length distribution of MWCNT-A in the lung alveoli and mediastinal lymph nodes. b Length distribution of MWCNT-B in the lung alveoli and mediastinal lymph nodes