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Show HIGH TENSION X-RAY IS MORE EFFICIENT ST. LOCIS. May 19- The treatment treat-ment of cancer is becoming more efficient ef-ficient by use of the higher penetrat-in penetrat-in 1 N-ray. speakers declared today at tho opening session of the Rlld-annual convention of the Radiological society of North AmeBlca. Speakers explained that !n the new ireatment by higher penetration N-r.iy the voltage of the ray was increased in-creased from 140,000 to 300.000. Prominent radiologists from all parts of the country are attending! tho convention, which will continue I through tomorrow. |