Sentences with phrase «form of alternation»
Randomised controlled trials (RCTs) and quasi-RCTs (in which the allocation to study arms is not truly random, for example, a form of alternation such as days of the week or by date of birth).
http://cochranelibrary-wiley.com/ Not exact matches
The LUXE benefits keep coming in the form of triple points shopping days, free shipping on all orders, a special customer service line, free basic alternations and a «choose your own sale» day.