R1A1D2I1O1S1C3O1P3Y4
18 points
RADIOSCOPY is validvalid
examination by X-ray of optically opaque objects [n RADIOSCOPIES]
examination of opaque bodies by X-rays [n RADIOSCOPIES]
examination by X-ray of optically opaque objects [n RADIOSCOPIES]
examination of opaque bodies by X-rays [n RADIOSCOPIES]