11.   Some journals publish proportionally more of the output of particular departments than others, and conversely the spread of preferred journals within individual departments shows marked differences.

12.   There was a marked difference between the frequency of obstructive symptoms in benign and malignant strictures.

13.   In spite of the marked difference in intragastric ammonium concentration, the severity of histological gastritis was similar in the H pylori positive patients with or without renal failure.

14.   Even within a single county there could be marked differences in the capacity of the soil to yield particular crops, and in ease of cultivability.

15.   But despite their close similarity there is a marked difference in emphasis and tone between the two versions.

16.   Dr Forwell said that marked differences among districts within the health board area suggested that there must be other determiners of health than just health services.

17.   The three free-standing objects introduce complexity through the marked difference in content and philosophy.

18.   Although the principle was accepted in the end, marked conceptual differences began to appear.

19.   Anyone who is UK-based and has spent much time in the U.S. this year will notice a marked difference in the mood between the two countries.

20.   A former landlord, who spoke on condition of anonymity, also said he noticed a marked difference in Laura during her first year of marriage.