text_1: 23-year-old woman with Graves disease.  She developed an absolute neutrophil count of 30 on Tapazole (total white count 3000, 1% neutrophils).  Is there any cross reactivity between Tapazole and propylthiouracil?  Is it safe to start propylthiouracil?
text_2: How should I treat polymenorrhea in a 14-year-old girl?