Kirkwood explained that during childhood and adolescence, mutations in skin pigment cells can be triggered by solar radiation, although cancer may not appear until many years later.
Kirkwood menjelaskan bahwa selama masa kanak - kanak dan remaja, mutasi sel - sel pigmen kulit dapat dipicu oleh radiasi sinar matahari, meskipun kanker baru muncul bertahun - tahun kemudian.