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- Author(s):
- Gradwohl, R. B. H. (Rutherford Birchard Hayes), 1877-1959, author
- Publication:
- [Philadelphia?] : [publisher not identified], [1899?]
- Subject(s):
- Meningitis, Meningococcal -- epidemiology
Epidemics
- Author(s):
- Gradwohl, R. B. H. (Rutherford Birchard Hayes), 1877-1959, author
- Publication:
- [Philadelphia?] : [publisher not identified], [1889?]
- Subject(s):
- Meningitis, Meningococcal -- transmission
Infectious Disease Transmission, Vertical
Pregnancy Complications, Infectious