Summarize
"Hospital Release, dated 4 Jan 67, signed by Vu Hulu Ho, Medical Student, and authenticated by Hong Văn Co, Chief of Internal Disease Section of K7LB Hospital 7, issued to Lê Van Dum, soldier of Unit VII of C249 aka Postal Transportation and Communication Section, Liberation Army HQ 7. Lê Van Dum was hospitalized from 28 Dec 66 to 4 Jan 67 for the treatment of bodily weakness."