NO SINGLE party has the right to make a unilateral decision when faced with a risky medical procedure - such as the separation of twins joined at their heads - said Singapore's top ethicist.

Associate Professor Roy Joseph, who chairs the National Medical Ethics Committee (NMEC), said doctors and hospitals have a 'large responsibility' when evaluating such treatment.

But it should be a team decision - involving also patients, their family and other relevant team members - which should consider all relevant medical and non-medical considerations.

Read the full story in Wednesday's edition of The Straits Times.