Dada, T., Bali, S. J., Mohan, S., Bhartiya, S., Sobti, A. and Panda, A. (2012) “Trypan blue staining of filtering bleb in eyes with operated trabeculectomy”, Nepalese Journal of Ophthalmology, 4(2), pp. 224–229. doi: 10.3126/nepjoph.v4i2.6536.