[Distance from the skin to the epidural space in children].
D000367:Age Factors; D000767:Anesthesia, Epidural / Q000379:methods*; D002648:Child; D002675:Child, Preschool; D004388:Dura Mater / Q000033:anatomy & histology*; D006801:Humans; D007223:Infant; D012867:Skin; D013115:Spinal Canal / Q000033:anatomy & histology*