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  Indian J Med Microbiol
 

Figure 2: (a) Red color ultrasonic transducer with frequency ranges 1–5 MHz. (b) Red color Ultrasonic transducer with frequency ranges 1–5 MHz with shows the protective layer inside black circle

Figure 2: (a) Red color ultrasonic transducer with frequency ranges 1–5 MHz. (b) Red color Ultrasonic transducer with frequency ranges 1–5 MHz with shows the protective layer inside black circle