Suleyman R, Lawton G
Radiography. 1979 Jul;45(535):148-9.
Multilingual illustrative posters requesting information as to possible pregnancy were introduced to the X-ray Department of the Royal Northern Hospital. A subsequent reduction in accidental foetal radiation was observed.
向皇家北方医院放射科发放了多语言说明海报，以询问是否可能怀孕。随后观察到意外胎儿辐射有所减少。
