Abstract
Summary
A pigment from Harder's gland has been identified as a protoporphyrin. It is this pigment and not blood that appears in choline-induced chromodacryorrhea.
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A pigment from Harder's gland has been identified as a protoporphyrin. It is this pigment and not blood that appears in choline-induced chromodacryorrhea.
View all access options for this article.