Sentences with phrase «weaker as the letters»
Section B contains «studies exhibiting problems with the design, analysis or reporting» and so on, with the evidence becoming weaker as the letters progress.
http://www.honestmidwife.com/ Not exact matches
Companies such as A.M. Best or Standard & Poor's provide credit and stability grades, using letter grade scores from superior / strong (AAA or A + +) to weak / vulnerable (F or CC) based on an insurer's current financial strength.