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Annals of Allergy|February 1, 1980
Four cases of recurrent pseudo-scarlet fever caused by phenathrene alkaloids with a 6-hydroxy group (codeine and morphine)R Voorhorst, S Sparreboom
Annals of Allergy|August 1, 1980
The use of stereoisomers in patch testingR Voorhorst, S Sparreboom
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