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DIGHE, PEARL PIRES; TANK, H. M. . (2019). FORMULATION DEVELOPMENT AND STATISTICAL OPTIMIZATION OF A BILAYER TABLET OF BOSENTAN MONOHYDRATE AND SILDENAFIL CITRATE IN MANAGEMENT OF PULMONARY ARTERIAL HYPERTENSION. International Journal of Applied Pharmaceutics, (), 239–246. doi:10.22159/ijap.2019v11i2.30927 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research