1 SELECTED 313.490 313.491 Selected lectures from the First International Conference Modern Methods in Pain Treatment Warsaw, May 20-22, 1999 / ed. by Jerzy Jarosz and Małgorzata Symonides ; org. by The Maria Skłodowska-Curie Memorial Cancer Centre-Institute of Oncology and The World Society of Pain Clinicians. - Warszawa : Polskie Towarzystwo Onkologiczne : Centrum