a medication category of refers to how the drugs act on the body (anti-hypertensive, antihistamine, etc), whereas a medication group ofter refers to a smaller category of similar drugs within a certain category (statins, ace-inhibitors,etc.)
There is one major difference of a treatment group and a control group. The treatment group is treated with an experimental medication (or known medication), and the control group is treated with a placebo in place of the medication to measure effects of the medication.
When a group is too cohesive, productivity can suffer.
Inter-group relationship of pre-colonial era between Hausa, Igbo, Yoruba.
Ethnolinguistics is a study of the relationship between language and culture in any group of people. Ethnolinguistics is a cross between ethnology and linguistics.
There are a group of medications used for ADHD that are not amphetamine-based and have little addiction potential. Strattera is related to Prozac/Zoloft in structure, it may provide you with an alternative.
Hypothesis
apples are round
a class is a category showing an entire species in general, and a family is a category showing a specific group of organisms and their family tree
group
Category
Bion
Category