Busse W W, Schoenwetter W F
Ann Intern Med. 1975 Sep;83(3):361-2. doi: 10.7326/0003-4819-83-3-361.
Symptoms of asthma developed in three patients after exposure to psyllium powder, which was being used in the manufacture of a bulk laxative. All three had reaginic skin test sensitivity, and two had positive bronchial challenges with a psyllium extract.
三名患者在接触用于生产大容量泻药的车前草粉末后出现了哮喘症状。这三名患者均有反应素皮肤试验敏感性，其中两名患者对车前草提取物的支气管激发试验呈阳性。
