Laboratory of Molecular Psychiatry & Neurogenetics, University Campus Bio-Medico, Rome, Italy and Department of Experimental Neurosciences, IRCCS. “Fondazione Santa Lucia”, Rome, Italy Dr A M Persico, ...

Correspondence to Dr Shizuka Koh, Department of Innovative Visual Science, Osaka University Graduate School of Medicine, Osaka 565-0871, Japan; cizciz{at}gmail.com The precorneal tear film is ...

Economic and social resources are known to contribute to the unequal distribution of health outcomes. Culture-related factors such as normative beliefs, knowledge and behaviours have also been shown ...