Subjects: CONFIDENCE intervals; PREMATURE infants; INFANT mortalityUNITED States
Record details
Subjects: *PREGNANCY; *TWINS; *PREMATURE labor
Subjects: *PREGNANCY; *TWINS
Subjects: OBESITY complications; CONFIDENCE intervals; STATISTICAL correlation
Subjects: BIRTH weight; CHI-squared test; LONGITUDINAL methodMISSOURI
Subjects: CHI-squared test; CONFIDENCE intervals; CONGENITAL heart diseaseCALIFORNIA
Subjects: AGING; APGAR score; ARTIFICIAL respiration
Subjects: RESUSCITATION; PREGNANCY; PREMATURE infants
Subjects: FIRST trimester of pregnancy; ULTRASONIC imaging; MEDICAL imaging systems
Subjects: LOW birth weight; DEVELOPMENTAL psychology; TWINS