Letters to the Editor

19073

In reference to this article, I was curious as to whether there was any indication in the research that bipolar disorder in children was misdiagnosed as attention-deficit hyperactivity disorder when those children were in the manic phase? Eric P. HuppCuster, S.D. The researchers recruited children whose mania was distinct from attention-deficit hyperactivity disorder (ADHD). Among […]

19013

Concerning kids’ backpacks, these are not “backpacks.” These are better called “school” or “convenience” packs. A true backpack carries the load on the hips and waist, with shoulder straps for hold and balance, and does not encourage a stooped posture from carrying the load on the shoulders. Joseph KostkaNatrona Heights, Pa. I am 74 years […]

19072

This article describes the use of interference patterns from laser light sources to measure the effects of gravity waves.