This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
The 'Search lines' to detect fracture line on occipitamental radiographic view of midfacial skeleton fracture was described by 
Select and explain. 
A. Rene Lefort and Guerin, B. McGrigor and Campbell, C. Andreason and Ravn, D. Rowe and Williams
B: McGrigor and Campbell
Answer: B: McGrigor and Campbell 
Explanation: None