Instruct: Identify the main category of Medrxiv papers based on the titles
Query: Evaluation of different diffusion-weighted image techniques for head and neck radiation treatment: phantom and volunteer studies
22
The categories of this paper are: clinical
56
The categories of this paper are: research
42
The categories of this paper are: occupational
62
The categories of this paper are: orthopedics
48
The categories of this paper are: critical
45
The categories of this paper are: pharmacology
11
The categories of this paper are: policy
2
The categories of this paper are: medicine
0
The categories of this paper are: neurology
73
The categories of this paper are: toxicology
34
The categories of this paper are: therapy
18
The categories of this paper are: global
29
The categories of this paper are: anesthesia
65
The categories of this paper are: oral
50
The categories of this paper are: medical
41
The categories of this paper are: nephrology