Subjects
- Humans2
- Infant Mortality2
- Infertility2
- Lacerations -- surgery1
- Life Expectancy -- trends1
- Longevity1
- Middle Aged1
- Middle East1
- Mortality2
- Mutagenicity Tests -- standards1
- Neoplasms -- drug therapy1
- Pediatrics1
- Philadelphia1
- Population Dynamics2
- Population Growth1
- Postmenopause1
- Postpartum Period1
- Reproduction -- drug effects1
- Reproductive Medicine1
- Rural Population1