Dijk, L. van

asthma asthma medication study medication prescription antidepressant children diagnosis patient depression doctor-diagnosed asthma algorithm index date duplex population duplication saphenou saphenous vein study population antidepressant drug users doctor-diagnosed health asthma medication use ultrasound index group number therapy 2008 john wiley system depression diagnosis prescription databases netherland practice treatment month 12 months antidepressant prescription sensitivity database antidepressant drug use fascial blades congruence venou health services research page number table duplex ultrasound study research citation purposes ad prescriptions symptom drug safety disorder utrecht probability outcome inhaled speci validation characteristic prescription data speci ficity examination 6 years result phlebography fascial fication anatomy analyses service literature prescriber disease curve identi wiley antidepressant drug regression