english: When persistent difficulties with attention and distractibility have been present from early childhood, Attention Deficit Hyperactivity Disorder (ADHD) may be suspected.
non_english: ññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiihhhhhhhhhhhhhhhh