Berlin, A., R.A. Bhopal, J. Spencer, and T. Van Zwanenberg. "Creating a death register for general practice." British Journal of General Practice 43/367 (February 1993): 70–72.

Berlin, A., R.A. Bhopal, J. Spencer, and T. Van Zwanenberg. "Creating a death register for general practice." British Journal of General Practice 43/367 (February 1993): 70–72.