Development and Validation of Reversed Phase HPLC Method for the Simultaneous Detection of Lactone and Carboxylate Forms of Topotecan Along with Thymoquinone: Application to Nanoparticulate Anticancer Formulation System. - Devina Verma; Mirza, Mohd. Aamir; Taleuzzaman, Mohamad; Khuroo, Tahir; Talegaonkar, Sushama; Kumar, Robin; Sahu, P. L.; Iqbal, Zeenat (Journal of Analytical Chemistry, 2020)