TY  - GEN
AU  - Ehrlich,George E
TI  - How many angels could dance on the head of a pin?
SN  - 0315-162X
PY  - 2003///0224
KW  - Autoantibodies
KW  - blood
KW  - Biomarkers
KW  - Chronic Disease
KW  - Fibromyalgia
KW  - complications
KW  - Humans
KW  - Pain
KW  - Phospholipids
KW  - immunology
KW  - Rheumatology
KW  - Serotonin
KW  - Terminology as Topic
N1  - Publication Type: Comment; Letter
ER  -