Evaluasi spektrum gelombang USG Doppler dan kaitannya dengan Ankle Brachial Index (ABI) dan faktor-faktor risiko pada pasien Peripheral Arterial Disease (PAD) = The evaluation of Doppler Ultrasonography spectral waveform and its relationship with Ankle Brachial Index (ABI) value and risk factors in Peripheral Artery Disease (PAD) paitents