Magnets.
Watson
Andrew
A
D002648:Child; D006801:Humans; D008280:Magnetics / Q000009:adverse effects*; D008297:Male; D010146:Pain / Q000209:etiology*; D010413:Penis / Q000293:injuries*; D011356:Product Labeling; D014949:Wounds, Nonpenetrating / Q000209:etiology*