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According to the cognitive status, the patients were divided into two groups, a case group and a control group.
Using hospital records, they identified a "case" group (a cohort of men with lung cancer) and a matched group of men without lung cancer (a "control" group).
Altogether, data from 1028 members of a case group and 2744 members of a control group corresponding to 85.4% eligible members of the case group and 76.1% of the control group were analyzed.
In such a case, group theory predicts no luminescence peaks from 5D0 → 7F0 transition, two lines from the 5D0 → 7F1 and three lines from the 5D0 → 7F2 transitions.
The survey subjects included a case group and a control group.
Eighty samples of formalin-fixed paraffin-embedded fetal tissue from spontaneous abortion diagnosed previously were included as a case group.
The first 80 volunteers that could be matched to a case group participant were included in the study.
One study had a case group with a mean age that was more than 20 years older than that of the control group [ 11].
The confirmed scrub typhus patients were divided into two groups: a case group with severe scrub typhus and a control group without severe scrub typhus.
One of the two control groups was treated as a case group and the other was treated as a control group in the analysis.
The study was conducted as an intervention study with a case group, consisting of patients with CKD, and a healthy control group.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com