Figure legends
Figure. CPM concentration in urine (A) and saliva (B) in family caregivers and healthcare professionals. We administered high-dose CPM to 15 hospitalized pediatric cancer patients, and analyzed the concentration of CPM in the urine (U) and saliva (S) of mothers attending the patients (U=15, S =3), nurses (U, S=each 12), doctors (U, S=each 3), nursery teachers and child-life specialists (U, S=each 3), and housekeeping staff in the pediatric ward (U, S=each 3) by the liquid chromatography / mass spectrometry method (Shionogi Analysis Centre Co., Ltd., Osaka, Japan) on day 1 of chemotherapy. All samples were collected approximately 6 h after CPM administration to patients. The bars in each scatter diagram show the median values.