Seaman Yin Su, a hospitalman with Naval Medical Center San Diego and a Los Angeles native, uses a blood stripper to push remaining blood into a blood bag during a Blood Donor Center blood drive aboard Marine Corps Air Station Miramar, Calif., March 27. NMCSD corpsmen hold blood drives at various military installations throughout Southern California four times a week. For more information on donation locations, visit <a rel="nofollow" class="external free" href="http://www.militaryblood.dod.mil/">http://www.militaryblood.dod.mil/</a>.
Lance Cpl. Erica Kirsop
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