Healey, PR; Mitchell, P; Gilbert, CE; Lee, AJ; Ge, DL; Snieder, H; Spector, TD; Hammond, CJ; (2007) The inheritance of peripapillary atrophy. Investigative ophthalmology & visual science, 48 (6). pp. 2529-2534. ISSN 0146-0404 DOI: https://doi.org/10.1167/iovs.06-0714

Liew, SHM; Gilbert, CE; Spector, TD; Marshall, J; Hammond, CJ; (2007) The role of heredity in determining central retinal thickness. The British journal of ophthalmology, 91 (9). pp. 1143-1147. ISSN 0007-1161 DOI: https://doi.org/10.1136/bjo.2007.114215 Full text not available from this repository.

Hammond, CJ; Webster, AR; Snieder, H; Bird, AC; Gilbert, CE; Spector, TD; (2002) Genetic influence on early age-related maculopathy: a twin study. Ophthalmology, 109 (4). pp. 730-6. ISSN 0161-6420 DOI: https://doi.org/10.1016/S0161-6420(01)01049-1 Full text not available from this repository.

Swerdlow, AJ; de Stavola, BL; Floderus, B; Holm, NV; Kaprio, J; Verkasalo, PK; Mack, T; (2002) Risk factors for breast cancer at young ages in twins: An international population-based study. Journal of the National Cancer Institute, 94 (16). pp. 1238-1246. ISSN 0027-8874 DOI: https://doi.org/10.1093/jnci/94.16.1238 Full text not available from this repository.

Tomassini, C; Rosina, A; Billari, FC; Skytthe, A; Christensen, K; (2002) The effect of losing the twin and losing the partner on mortality. Twin research, 5 (3). pp. 210-7. ISSN 1369-0523 DOI: https://doi.org/10.1375/136905202320227871 Full text not available from this repository.

Hammond, CJ; Snieder, H; Gilbert, CE; Spector, TD; (2001) Genes and environment in refractive error: the twin eye study. Investigative ophthalmology & visual science, 42 (6). pp. 1232-6. ISSN 0146-0404 https://researchonline.lshtm.ac.uk/id/eprint/15453

Jepson, A; Fowler, A; Banya, W; Singh, M; Bennett, S; Whittle, H; Hill, AVS; (2001) Genetic regulation of acquired immune responses to antigens of Mycobacterium tuberculosis: a study of twins in West Africa. Infection and immunity, 69 (6). pp. 3989-3994. ISSN 0019-9567 DOI: https://doi.org/10.1128/IAI.69.6.3989-3994.2001 Full text not available from this repository.