Plan and operation of cycle 6 of the National Survey of Family Growth ; data from the program and collection procedures
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| 格式: | 图书 |
| 语言: | English |
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Hyatteville, MD
National Center for Health Statistics
2005.
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| 格式: | 图书 |
| 语言: | English |
| 出版: |
Hyatteville, MD
National Center for Health Statistics
2005.
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| 主题: |