PT - JOURNAL ARTICLE AU - Allyson M Pollock AU - Liz Richardson TI - Commercial confidentiality: a cloak for policy failure AID - 10.3399/bjgp09X473114 DP - 2009 Dec 01 TA - British Journal of General Practice PG - 893--894 VI - 59 IP - 569 4099 - http://bjgp.org/content/59/569/893.short 4100 - http://bjgp.org/content/59/569/893.full SO - Br J Gen Pract2009 Dec 01; 59