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Biology, 24.10.2019 05:00 kayonapretty14p45995
Acase-control study was conducted to determine if an association exists between workers in uranium mines and loss of fertility due to reduced sperm count. a group of 200 men with low sperm count were identified from clinics located in areas with uranium mines. each selected case was matched with a randomly selected male control on the following factors: race, age, area of residence, and smoking status. what is the purpose of matching?
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