A combined approach using differential scanning calorimetry with polarized light thermomicroscopy in the investigation of ketoprofen and nicotinamide cocrystal Perpétuo, G.; Chierice, G.; Ferreira, L.; Fraga-Silva, T.; Venturini, J.; Arruda, M.; Bannach, G.; Castro, R.; Thermochimica Acta 2017, 651, 1-10