
An Introduction to Community Health 7th Edition by James McKenzie,Robert Pinger,Jerome Kotecki
النسخة 7الرقم المعياري الدولي: 978-0763790110
An Introduction to Community Health 7th Edition by James McKenzie,Robert Pinger,Jerome Kotecki
النسخة 7الرقم المعياري الدولي: 978-0763790110 تمرين 22
How do experimental studies differ from observational studies? What value do they have in epidemiology? To what principles must investigators adhere in order to properly carry out an experimental study?
التوضيح
Following are the ways by which experime...
An Introduction to Community Health 7th Edition by James McKenzie,Robert Pinger,Jerome Kotecki
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