[1] Hosp Braga, Braga, Portugal
[2] Ctr Hosp Sao Joao, Med Interna Serv, Porto, Portugal
[3] Univ Porto, I3S, Porto, Portugal
[4] Royal Marsden Hosp, Inst Canc Res, London, England
[5] Ctr Hosp Sao Joao, Dept Oftalmol, Porto, Portugal
[6] Univ Porto, Fac Med, Porto, Portugal
[7] Katholieke Univ Leuven, Dept Biomed Sci, Lovaina, Belgium
[8] Inst Oftalmol Dr Gama Pinto, Lisbon, Portugal
[9] Scripps Res Inst, Dept Cell & Mol Biol, Friedlander Lab, La Jolla, CA 92037 USA
[10] Hosp Univ Genebra, Unidade Epidemiol Populac, Genebra, Switzerland
[11] Hosp Univ Genebra, Dept Med Interna, Genebra, Switzerland