Ravazzoni L, Ghini C, Macri A, Rolando M (1998). "Forecasting of hydrophilic contact lens tolerance by means of tear ferning test". Clinical and Experimental Ophthalmology. 236 (5): 354–358. doi:10.1007/s004170050090. PMID9602319. S2CID9448528.
Ravazzoni L, Ghini C, Macri A, Rolando M (1998). "Forecasting of hydrophilic contact lens tolerance by means of tear ferning test". Clinical and Experimental Ophthalmology. 236 (5): 354–358. doi:10.1007/s004170050090. PMID9602319. S2CID9448528.
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Ravazzoni L, Ghini C, Macri A, Rolando M (1998). "Forecasting of hydrophilic contact lens tolerance by means of tear ferning test". Clinical and Experimental Ophthalmology. 236 (5): 354–358. doi:10.1007/s004170050090. PMID9602319. S2CID9448528.