https://sides.uness.fr/corpus/M%C3%A9decine_interne:%C5%92d%C3%A8mes_des_membres_inf%C3%A9rieurs_localis%C3%A9s_ou_g%C3%A9n%C3%A9ralis%C3%A9s 2021 France educational course Metabolism metabolism internal medicine specialist Edema lower extremity leg edema internal medicine general metabolic function, nos edema of lower extremity edema Physicians