the following observations indicate that apical tuberculosis of adults is not the result of infantile tuberculosis but is caused by subsequent infection : ( a ) apical tuberculosis does not have its highest incidence , in accordance with common belief , in early adult life when focal infections acquired in childhood are relatively fresh and active but is more common in later life when the focal lesions of childhood have in most instances completely healed .
C0009450
infection
C0016397
focal infections