AAMI	Association for the Advancement of Medical Instrumentation
ANN	Artificial Neural Network
ANSI	American National Standards Institute
BCG	Ballistocardiogram
BP	Blood Pressure
CNN	Convolutional Neural Network
DBP	Diastolic blood pressure
ECG	Electrocardiogram
EMD	Empirical mode decomposition
GRU	Gated recurrent units
IMF	Intrinsic mode function
IPD	Instantaneous phase difference
ISO	International Organization for Standardization
ME	Mean error
PPG	Photoplethysmogram
PTT	Pulse transit time
PVDF	Polyvinylidene fluoride resin
PWV	Pulse wave velocity
SBP	Systolic blood pressure
SD	Standard deviation