@classmethod
def from_subread(cls, file_path, sample_data=None, sample_mapping=None, **
    kwargs):
    """Reads expression from a subread output file."""
    return super().from_csv(file_path, sample_data=sample_data,
        sample_mapping=sample_mapping, drop_cols=['Chr', 'Start', 'End',
        'Strand', 'Length'], index_col=0, sep='\t', **kwargs)
