1011
Previous research on anomaly detection has primarily focused on using in-situ monitoring of the additive manufacturing process or post-process ( ex-situ ) x-ray computed tomography .
 research, anomaly, in-situ, additive manufacturing process, post-process, x-ray computed tomography
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 research, anomaly, in-situ, additive manufacturing process, post-process, x-ray computed tomography