
Nutrition 13th Edition by Ellie Whitney,Frances Sizer
النسخة 13الرقم المعياري الدولي: 978-1133610113
Nutrition 13th Edition by Ellie Whitney,Frances Sizer
النسخة 13الرقم المعياري الدولي: 978-1133610113 تمرين 9
Studies of populations in which observation is accompanied by experimental manipulation of some population members are referred to as ______.
A) case studies
B) intervention studies
C) laboratory studies
D) epidemiological studies
A) case studies
B) intervention studies
C) laboratory studies
D) epidemiological studies
التوضيح
The study which is used for a single per...
Nutrition 13th Edition by Ellie Whitney,Frances Sizer
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