MDC_ECG_LDSYS_12LD_UNSPECIFIED MDC_ECG_LDSYS_12LD_STD MDC_ECG_LDSYS_12LD_MASON_LIKAR MDC_ECG_LDSYS_12LD_VPAD MDC_ECG_LDSYS_12LD_PAD MDC_ECG_LDSYS_12LD_FROM_FRANK MDC_ECG_LDSYS_12LD_NON_STANDARD MDC_ECG_LDSYS_12LD_BICYCLE MDC_ECG_LDSYS_12LD_RAISED_INTERCOSTAL MDC_ECG_LDSYS_XYZ_UNSPECIFIED MDC_ECG_LDSYS_XYZ_FRANK MDC_ECG_LDSYS_XYZ_MCFEE_PARUNAGO MDC_ECG_LDSYS_XYZ_CUBE MDC_ECG_LDSYS_XYZ_BIPOLAR MDC_ECG_LDSYS_XYZ_PSEUDO_ORTH MDC_ECG_LDSYS_XYZ_FROM_12LD MDC_ECG_LDSYS_3LD_NEHB MDC_ECG_LDSYS_3LD_CC5_CM5_ML MDC_ECG_LDSYS_3LD_CM5_CC5_CH5 MDC_ECG_LDSYS_12LD_FROM_DOWER MDC_ECG_LDSYS_12LD_FROM_EASI MDC_ECG_LDSYS_12LD_FROM_LIMB MDC_ECG_LDSYS_12LD_STD_AND_XYZ MDC_ECG_LDSYS_12LD_STD_AND_NEHB MDC_ECG_LDSYS_12LD_STD_AND_CC5_CM5_ML MDC_ECG_LDSYS_12LD_STD_AND_CM5_CC5_CH5 MDC_ECG_LDSYS_12LD_STD_EXTD MDC_ECG_LDSYS_12LD_STD_EXTD_RIGHT MDC_ECG_LDSYS_12LD_STD_EXTD_LEFT