PT - JOURNAL ARTICLE AU - Douglas Black TI - Choices and conjoint twins: a personal view AID - 10.7861/clinmedicine.1-2-94 DP - 2001 Mar 01 TA - Clinical Medicine PG - 94--94 VI - 1 IP - 2 4099 - http://www.rcpjournals.org/content/1/2/94.short 4100 - http://www.rcpjournals.org/content/1/2/94.full SO - Clin Med2001 Mar 01; 1