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  • Letters November 01, 1970

    ARNOLD L. COLMAN, M.D.

    Ann Intern Med. 1970; 73(5):859-859. doi: 10.7326/0003-4819-73-5-859_1

  • Letters August 01, 1989

    A.A. Blaauw, MD; Sj. van der Linden, MD; H. Kuiper, MD

    Ann Intern Med. 1989; 111(3):261-262. doi: 10.7326/0003-4819-111-3-261_2