Where did the plague first break out in europe?

Which of the following contributed most to making the items listed in the box

Identify the example of when situation and time are key to assessing risk of harm in a research study: a study on the efficacy of a behavioral intervention for smoking cessation involves both adults and teenagersasking women if they have had an abortionresearch on the prevalence of hiv-infected individuals in communitiesa survey about sexually transmitted diseases

What percentage of roads in germany have no speed limit?