Secular changes in sleep position during infancy: 1995-1998. [electronic resource]
Producer: 20030206Description: 52-60 p. digitalISSN:- 1098-4275
- Chi-Square Distribution
- Cohort Studies
- Educational Status
- Humans
- Infant Care -- statistics & numerical data
- Infant, Newborn -- physiology
- Longitudinal Studies
- Massachusetts
- Mothers -- statistics & numerical data
- Ohio
- Population Surveillance
- Posture -- physiology
- Prone Position
- Prospective Studies
- Sleep -- physiology
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Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S.
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