Hasan Adil, Dilnawaz Sheikh, Iqbal Ahmed, M. Rafi Shaikh, Ghulam Ali
The efficacy of zinc sulphate and boric acid ophthalmic preparations, containing benzalkonium chloride as preservative have been investigated against Gram-negative Escherichia coli and Pseudomonas aeruginosa and Gram-positive Staphylococcus aureus bacteria