Mehta, Anita A., and P V Gohil. “Effect of PHE Against Trypsin and Egg-Albumin Induced Experimental Model of Asthma in Mice”. International Journal of Pharmaceutical Sciences and Nanotechnology(IJPSN), vol. 6, no. 4, Dec. 2013, pp. 2299-04, doi:10.37285/ijpsn.2013.6.4.13.