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 Indian J Med Microbiol  
 

Figure 8: (a) The American Board of Forensic Odontology No. 2 standard reference scale. (b) Use of length graduations to project a virtual grid, which propagates the length scale to the two-dimensional plane defined by the ruler

Figure 8: (a) The American Board of Forensic Odontology No. 2 standard reference scale. (b) Use of length graduations to project a virtual grid, which propagates the length scale to the two-dimensional plane defined by the ruler