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From "Lin, Chen" <Chen....@childrens.harvard.edu>
Subject question about drug-ner
Date Wed, 19 Jun 2013 14:25:46 GMT
Dear ctakes developers,

May I please have your help on a drug-ner question? I am wondering what the difference between
MedicationDosage and MedicationStrength is? My goal is to extract the dosage information for
a drug called "methothrexate". I used MedicationStrength to get the number and unit. It seems
working for many cases. However, I met some problems when processing the following sentence:

"... #1 Bottle(s)metformin PO undefined Methotrexate (ORAL) 15 MG (2.5MG TABLET Take 6) PO
QWEEK , 6 tablets, once a week #24 Tablet(s)Metrocream (METRONIDAZOLE 0.75% Cream)..."

I thought the number should be "15", and the unit should be "MG". Instead, I got the number
as "15", but the unit as "%". I have no idea where the "%" is from. And the MedicationDosage
showed that the value is "24". Would any please help explain the results? I would appreciate
your help very much!


Chen Lin
Applications Development Specialist
Children's Hospital Boston
Informatics Program
300 Longwood Avenue
Enders 142
Boston, MA 02115
Phone: 617-919-3421

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