Rishniw, Mark "Perception v production" of asparagus odour in urine needs to be determined in a controlled study. [electronic resource] - BMJ (Clinical research ed.) 06 2017 - j2882 p. digital Publication Type: Letter; Comment ISSN: 1756-1833 Standard No.: 10.1136/bmj.j2882 doi Subjects--Topical Terms: Asparagus PlantHumansOdorantsPerceptionSmellVegetables