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Publisher
- academic press1
- american medical association2
- american psychiatric pub1
- bmj pub. group2
- elsevier2
- elsevier inc1
- elsevier science9
- epidemiology program office, centers for deasease control and prevention (cdc), u.s. department of health and human services1
- epidemiology program office, centers for disease control and prevention, u.s. dept. of health and human services1