PLOD1 and hydrops fetalis: Some authors suggest that, for LH and HF, the band width thresholds should be 0.01–0.07 Hz and 0.07–0.6 Hz, respectively [33,34], while other authors suggest thresholds of 0.005–0.07 Hz for LH and 0.07–0.5 Hz for HF [32,35].