Amazon's bidding system factors in your budget, keyword bid and how relevant the book is to the keyword to estimate the potential for a sale. (myworkfromhomemoney.com)
«Researchers examine the influence of country - level and health system factors on nursing and physician personnel production.» (sciencedaily.com)
«Our study suggests that system factors such as access to care and emergency department annual chest pain volume are the strongest predictors of follow - up rather than patient factors. (sciencedaily.com)