Ola Dale

The 118 A > G polymorphism in the human µ‐opioid receptor gene may increase morphine requirements in patients with pain caused by malignant disease

Pål Klepstad, Trude Teoline Nausthaug Rakvåg, S. Kaasa et al. · Acta Anaesthesiologica Scandinavica · 2004 · 380 citations

Medicine, Genetics, Pharmacology +17

The Val158Met polymorphism of the human catechol-O-methyltransferase (COMT) gene may influence morphine requirements in cancer pain patients

Trude Teoline Nausthaug Rakvåg, Pål Klepstad, Cecilie Báár et al. · Pain · 2005 · 343 citations

Medicine, Oncology, Pharmacology +17

Choosing the unit of measurement counts: The use of oral morphine equivalents in studies of opioid consumption is a useful addition to defined daily doses

Kristian Svendsen, PC Borchgrevink, Olav Magnus S. Fredheim et al. · Palliative Medicine · 2011 · 207 citations

Medicine, Pharmacokinetics, Pharmacology +14

Influence from genetic variability on opioid use for cancer pain: A European genetic association study of 2294 cancer pain patients

Pål Klepstad, Torill Fladvad, Frank Skorpen et al. · Pain · 2011 · 200 citations

Medicine, Genetics, Pharmacology +17

Associations between recreational exercise and chronic pain in the general population: Evidence from the HUNT 3 study

Tormod Landmark, Pål Romundstad, Petter C. Borchgrevink et al. · Pain · 2011 · 195 citations

Education, Health Promotion, Exercise Physiology +8