TY - RPRT TI - Buyers guide--Part 5: Biofeedback; catheters/catheterization systems; databases; diagnostics--software; digital radiography; electrodes: ECG, EEG, EMG; Holter services; patient monitors; stimulators, defibrillators. PY - 1985 UR - https://pubmed.ncbi.nlm.nih.gov/10274253/ ID - 10274253 ER -