Ultrasound-Guided Peripheral Intravenous Catheterization in Patients With Difficult Venous Access: A Comparative Study of Antecubital Versus Saphenous Veins. - Eslami, Babak; Montaseri, Alireza; Abassalipour, Farhood; Parnian, Maryam; Hajipour, Asghar; Maghsoudloo, Maziar; Namazi, Mehrshad; Emami, Kaveh Hedayati; Saravi, Manouchehr Nasrollahzadeh (Acta Medica Iranica, 2026)