def METHOD_NAME(df):
    """Rename columns to comply with a standard set.
    NCHS has changed column names a few times, so this will help us maintain
    backwards-compatibility without the processing code getting all gnarly.
    """
    rename_pairs = [(from_col, to_col) for (from_col, to_col) in RENAME
                     if from_col in df.columns]
    return df.rename(columns=dict(rename_pairs))