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APA Citation
van Boekel, R. L. M., Vissers, K. C. P., van de Vossenberg, G., de Baat-Ananta, M., van der Sande, R., Scheffer, G. J., & Steegers, M. A. H. (2016). comparison of Epidural or Regional Analgesia and Patient-controlled Analgesia. Clinical journal of pain, 32(8), . http://access.bl.uk/ark:/81055/vdc_100041981292.0x000035