Sentence:  As a first step in determining the degree of involvement of other sensory systems in the smell deficits of <WSD>anosmic</WSD> patients, a retrospective study was undertaken to determine if these patients could separate trigeminal and nontrigeminal odorants. ... The results of this analysis demonstrated ... that <WSD>anosmic</WSD> patients could separate ammonia and vinegar from the other eight odorants of the OCM [Odorant Confusion Matrix], even though these odorants are usually not correctly identified. 
Meaning of the word marked with <WSD> tags:  Having anosmia; lacking a sense of smell.