What is the fine-grained topic of the following text: Makowsky M, McMurtry MS, Elton T, Rosenthal M, Gunther M, Percy M, Wong K, Fok J, Sebastianski M, Tsuyuki R.
Prevalence and treatment patterns of lower extremity peripheral arterial disease among patients at risk in ambulatory health settings. Only return the topic.
Prevalence and treatment patterns of lower extremity peripheral arterial disease among at-risk patients in ambulatory health settings.