February 27, 20206 yr #1 As Spock would say, fascinating! https://www.npr.org/2020/02/21/808333569/study-finds-century-old-combat-helmet-superior-shield-against-brain-trauma
February 28, 20206 yr #2 As Spock would say, fascinating! https://www.npr.org/2020/02/21/808333569/study-finds-century-old-combat-helmet-superior-shield-against-brain-trauma
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