Correspondence from Professor WGE Cooksley (Director, Clinical Research Centre, Royal Brisbane Hospital Foundation) to Dr John Sheridan (Regional Medical Officer, Aboriginal Health, Department of Health, Brisbane, QLD) (17/1/1990) discussing whether serum samples originally collected from Aboriginal people with permission for a particular area of research can be used for further studies, from an ethical and legal point of view. Attached is a memorandum to Heads of Departments (The University of Queensland) on Human Experimentation at the University of Queensland (19/12/1989). This Document includes, Sample sections to include in an informed consent', 'Elements of informed consent', 'Examples of statements that may be included in informed consents', 'Common pitfalls in preparing and writing protocols', 'types of information that may be supplied to subjects', and 'International and National codes and statements on human experimentation'.