Pharmacopoeias as TopicDrug CombinationsDrug SynergismDrug Therapy, CombinationDrug InteractionsAntineoplastic Combined Chemotherapy ProtocolsProguanilMethenamineAntimalarialsDapsoneArtemisininsDrug TherapyAntineoplastic AgentsAtovaquoneCell Line, TumorDose-Response Relationship, DrugDrug Screening Assays, Antitumor