The Enduring Mystery of Pain Measurement
John Walsh 
The pain was excruciating: When he came to us, he was on four or five different medications, opiates with very high dosages, anticonvulsive medication, opioid patches, paracetamol and ibuprofen on top of that.
['The', 'pain', 'was', 'excruciating:', 'When', 'he', 'came', 'to', 'us,', 'he', 'was', 'on', 'four', 'or', 'five', 'different', 'medications,', 'opiates', 'with', 'very', 'high', 'dosages,', 'anticonvulsive', 'medication,', 'opioid', 'patches,', 'paracetamol', 'and', 'ibuprofen', 'on', 'top', 'of', 'that.']