Fig. 4From: Human bronchial carcinoid tumor initiating cells are targeted by the combination of acetazolamide and sulforaphaneSpheroid cells demonstrate increased drug resistance. (a) H727 and H720 PA and 3rd generation SP cells were treated with increasing doubling doses in a range (0-16 μM) of cisplatin as shown and cytotoxicity assayed with AlamarBlue. Percentage cell viability was measured. b&c IC50 values were calculated for the response of H727 and H720 PA versus SP to cisplatin and presented in TablesBack to article page