[Rather common, but not indefensible].
Solberg
Dag Kristen
DK
Molden
Espen
E
Refsum
Helge
H
D000077144:Clopidogrel; D003577:Cytochrome P-450 Enzyme System / Q000235:genetics; D005838:Genotype; D006801:Humans; D010975:Platelet Aggregation Inhibitors / Q000009:adverse effects*; D011355:Prodrugs; D013988:Ticlopidine / Q000009:adverse effects / Q000031:analogs & derivatives*
D010975:Platelet Aggregation Inhibitors; D011355:Prodrugs; D003577:Cytochrome P-450 Enzyme System; D000077144:Clopidogrel; D013988:Ticlopidine