00462nam a2200133Ia 4500008004100000020002200041040003800063100003000101245010600131250000800237260004900245300001200294653002200306211231s9999    xx            000 0 und d  a978-92-4-154812-0  cJayakar Knowledge Resource Centre  aWorld health Organization 0aWHO guidelines on the pharmacological treatment of persisting pain in children with medical illnesses  a1st  bWorld Health OrganisationaSwitzerlandc2012  a166p p.  aPain-drug therapy