However, not all studies of a small number of instances are case studies.
Not all studies of a small number of instances are case studies, however.
All studies of a small number of instances are case studies.
Two men riding on horseback.
The men are shielding their eyes from the sun
No one care where I am at.
A man kickboxes with himself.
A regulation failed to codify uniform acquisition.
England had never been to war in history.