摘要
The period of adolescence,defined by the World Health Organization as the period between 10 and 19 years of age,is the transition from childhood to adulthood through a number of biological,psychological,and social changes.It has been reported that one in five individuals is an adolescent,and 85% of adolescents live in developing countries,[1] Pregnancies that occur in this period,when the individual has yet to complete the maturation process in both biological and psychological senses,are risky for both the mother and child.
