Source:http://linkedlifedata.com/resource/umls/id/C0001578
CSP: period of life beginning with the appearance of secondary sex characteristics and terminating with the cessation of somatic growth; typically between 12 and 20 years of age; when school grades are referenced, this age group is typically grade 5 or 6 and above; also index with appropriate human and clinical research terms.,NCI: A human life stage that begins at twelve years of age and continues until twenty-one complete years of age, generally marked by the beginning of puberty and lasting to the beginning of adulthood.,NCI: The time period between the beginning of puberty and adulthood.,MSH: The period of life beginning with the appearance of secondary sex characteristics and terminating with the cessation of somatic growth. The years usually referred to as adolescence lie between 13 and 18 years of age.