Electronics in medical practice: variations in telemetry.
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Electrocardiography↗
Biomedical subjects
Publications and source records attributed to W E Chapman.
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Explore the source record for details and available documents.
Explore the source record for details and available documents.
The outcome of 5,659 pregnancies was recorded over a period of six years. The group was divided into 2,630 smokers and 3,029 non-smokers. Smoking was associated with increased incidence of premature babies, but not increased infant mortality. This study confirms the findings of other investigators.