EDITOR—In Vietnam, freedom of expression is limited, and this restriction has an impact on health services. Nguyen Dan Que has spent nearly half his professional life in prison for peaceful protest. He is an internationally trained doctor, capable of making a valuable contribution to hiscountry's health service.

Dr Que studied medicine at Saigon University and joined the teaching staff of the university'smedical school. He specialised in thyroid diseases and diabetes and in 1968-72 carried out research in Paris, Brussels, and London under the sponsorship of the World Health Organization. In 1974he returned to Vietnam to join …