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Least square means and standard errors relative to |GS-O|% for number of echocardiographic examinations per month
| Source of variability | LSM | SE |
|---|---|---|
| 10–20 echocardiographic examinations | 17.55 | 1.25 |
| > 20 echocardiographic examinations | 14.94 | 0.94 |
LSM = least square mean; SE = standard error
