Goetghebuer, T; Ota, MOC; Kebbeh, B; John, M; Jackson-Sillah, D; Vekemans, J; Marchant, A; Newport, M; Weiss, HA; (2003) Delay in motor development of twins in Africa: A prospective cohort study. Twin research, 6 (4). pp. 279-284. ISSN 1369-0523 DOI: https://doi.org/10.1375/136905203322296629 Full text not available from this repository.

Leon, DA; (2001) The foetal origins of adult disease: interpreting the evidence from twin studies. Twin research, 4 (5). pp. 321-6. ISSN 1369-0523 DOI: https://doi.org/10.1375/1369052012650 Full text not available from this repository.

Roseboom, TJ; van der Meulen, JH; Ravelli, AC; Osmond, C; Barker, DJ; Bleker, OP; (2001) Effects of prenatal exposure to the Dutch famine on adult disease in later life: an overview. Twin research, 4 (5). pp. 293-8. ISSN 1369-0523 DOI: https://doi.org/10.1375/1369052012605 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.

Wiart, A; Jepson, A; Banya, W; Bennett, S; Whittle, H; Martin, NG; Hill, AVS; (2004) Quantitative association tests of immune responses to antigens of Mycobacterium tuberculosis: A study of twins in West Africa. Twin research. p. 578. ISSN 1369-0523 DOI: https://doi.org/10.1375/1369052042663887 Full text not available from this repository.