Keywords: مانوبریوم; Ac; antecubital fossa; Ba; back; CI; confidence interval; Ea; external auditory canal; Fh; forehead; HA; healthy adults; HC; healthy children; Ic; inguinal crease; ITS1; internal transcribed spacer 1; Mb; manubrium; Oc; occiput; Ra; retroauricular crease;