Understanding that "R" or "L" word ... and addressing the mysterious black box.
Peter V
PV
Paul
D000293:Adolescent; D041923:Adolescent Development; D002648:Child; D002657:Child Development; D032882:Comprehension; D060345:Education of Persons with Hearing Disabilities; D006801:Humans; D019986:Persons with Hearing Disabilities / Q000523:psychology*; D011932:Reading; D009626:Terminology as Topic