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  Indian J Med Microbiol
 

Figure 1: (a) Flexometallic (Rusch®) tube 8.0 mm ID. (b) Flexometallic (UnoFlex™) tube 8.0 mm ID. (c) Tracheostomy (Portex®) tube 8.0 mm ID

Figure 1: (a) Flexometallic (Rusch®) tube 8.0 mm ID. (b) Flexometallic (UnoFlex™) tube 8.0 mm ID. (c) Tracheostomy (Portex®) tube 8.0 mm ID