Citação norma APA

Krall, R., & Rockhold, F. (2005). More on compulsory registration of clinical trials: GSK has created useful register. BMJ Publishing Group Ltd.

Citação norma Chicago

Krall, Ronald, and Frank Rockhold. More On Compulsory Registration of Clinical Trials: GSK Has Created Useful Register. BMJ Publishing Group Ltd, 2005.

Citação norma MLA

Krall, Ronald, and Frank Rockhold. More On Compulsory Registration of Clinical Trials: GSK Has Created Useful Register. BMJ Publishing Group Ltd, 2005.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.