幼儿期
2.The infection occurred either clinically or subclinically at an early age and resulted in the widespread production of antitoxin in the population.
3.METHODS: 134 patients with hemangiomas including 16 case at newborns, 91 at infants,16 at preschool age and 11 at school age ,and 39.6% located in parotid gland,20.9% in lip 20.1% in cheek, 9.0% in suborbital region,7.5% in orbit and 4.8% in nasal region were surgically treated , and the defects of soft tissues were repaired with pedicled flaps or skin flaps.
