273-276 Wiemann
نویسندگان
چکیده
evaluations of the extent to which resulting models discriminate between adolescents who enter care early and those who begin care later in pregnancy have been lacking. As a result, it is difficult for health care providers to accurately identify pregnant adolescents who are at the greatest risk for receiving inadequate care. The purpose of this study was to examine risk factors (including race or ethnicity and the use of tobacco, alcohol and illicit drugs such as marijuana) for late entry into prenatal care among a large sample of pregnant adolescents.
منابع مشابه
Luminescence digital imaging microscopy.
PRINCIPLES OF LUMINESCENCE MICROSCOPY ................................•..........•...........•............ 273 Photometric Features of a Luminescence Microscope ............................................... 273 Performance Criteria................................................................................................ 276 Practical Considerations ................................. .......
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