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- Corporate/Agency Authors:
- Public Health Service and Treasury Department
- Publisher:
- Public Health Service
- Date:
- May, 1921
- Corporate/Agency Authors:
- Public Health Service and Treasury Department
- Publisher:
- Public Health Service
- Date:
- Revised edition, May, 1921. 1921
- Corporate/Agency Authors:
- Public Health Service
- Publisher:
- Public Health Service
- Date:
- May, 1921
- Corporate/Agency Authors:
- Public Health Service and Treasury Department
- Publisher:
- Public Health Service
- Date:
- Apr. 1921
- Corporate/Agency Authors:
- Public Health Service and Treasury Department
- Publisher:
- Public Health Service
- Date:
- [April 1921]
- Corporate/Agency Authors:
- Public Health Service and Treasury Department
- Publisher:
- Public Health Service
- Date:
- [April 1921]
- Corporate/Agency Authors:
- Public Health Service
- Publisher:
- Public Health Service
- Date:
- Mar. 2, 1921
- Corporate/Agency Authors:
- Public Health Service and Treasury Department
- Publisher:
- Public Health Service
- Date:
- Jan. 31, 1921
- Corporate/Agency Authors:
- Public Health Service and Treasury Department
- Publisher:
- Public Health Service
- Date:
- 1921
- Corporate/Agency Authors:
- Public Health Service and Treasury Department
- Publisher:
- Public Health Service
- Date:
- 1921