ID	Search Hits
#1	MeSH descriptor: [Chronic Pain] this term only	1759
#2 #3	MeSH descriptor: [Pain, Intractable] this term only MeSH descriptor: [Back Pain] this term only	1703	254
#4	MeSH descriptor: [Low Back Pain] this term only	3186
#5 #6	MeSH descriptor: [Headache] this term only MeSH descriptor: [Musculoskeletal Pain] this term	2137 only	363
#7	MeSH descriptor: [Neck Pain] this term only	1003
#8	MeSH descriptor: [Neuralgia] this term only	973
#9 #10 #11	MeSH descriptor: [Pelvic Pain] this term only MeSH descriptor: [Sciatica] this term only279 MeSH descriptor: [Arthritis] this term only	446 1356