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  Indian J Med Microbiol
 

Figure 1 Perioral area boundaries: 1. Skin boundary. Superior: inferior alar margin; inferior: superior border of the mental crease; 2. Lip boundary: lip anterior to stomion.

Figure 1 Perioral area boundaries: 1. Skin boundary. Superior: inferior alar margin; inferior: superior border of the mental crease; 2. Lip boundary: lip anterior to stomion.