TY - CHAP M1 - Book, Section TI - Preface A1 - Phillips, Raymond E. PY - 2021 T2 - Venous Insufficiency AB - Venous Insufficiency provides a practical approach to recognize and to treat the disorder of the valves in veins of the leg. The concepts involved are not difficult to understand. What is demanding is the day‐to‐day application of measures to counter the unrelenting effect of gravity on the circulation of the lower body. Such is the burden we bipeds assume for challenging gravity with our extended upright activity. What is truly remarkable is the exquisite coordination of muscles and valves that enable the venous system of the lower limbs to function normally. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/04/19 UR - dermatology.mhmedical.com/content.aspx?aid=1175311464 ER -