Even when the target tumour is so small that it is hard to detect by chest radiographs and detectable only by chest CT scans, it is valuable to try bronchoscopic examination initially because the tumour may be visible through X-ray fluoroscopy by scanning from various directions.
The attraction for prisoners is that once Spice is smuggled in it is hard to detect because its chemical composition can be altered: it doesn't usually show up in prison drug tests.
Especially for the small target objects in the image, it is hard to detect it quickly and accurately by artificial detection [18].
Even though it is very important and urgent to explain the pathways of OCl− generation and its systemic impact, progress is still slow since it is hard to detect transient ROS refluxes [1, 28].
It is hard to detect a crisis in broadband deployment.
It is hard to detect weariness on her rouged face.
If there is bias, it is hard to detect.
If that has happened, it is hard to detect.
Yet it is hard to detect a whiff of revolution.
Although it is hard to detect an original voice in her scenarios, several themes do arise.
Once ingested, it is hard to detect, because all the radiation remains in the body.
