The Belfast hospitals' pharmacopœia : the official formulary of the Royal Victoria Hospital, the Mater Infirmorum Hospital, the Belfast Hospital for Sick Children, the Ulster Hospital for Children and Women, the Maternity Hospital, the Samaritan Hospital, the Belfast Ophthalmic Hospital, the Benn Eye, Ear and Throat Hospital / authorised by the medical staffs of the Belfast Hospitals and issued by the North Irish Pharmacists' Association.