Avan, BI; Raza, SA; Kirkwood, BR; (2014) A community-based study of early childhood sensory stimulation in home environment associated with growth and psychomotor development in Pakistan. International journal of public health, 59 (5). 779-88. doi: 10.1007/s00038-013-0525-7. Epub 2013 Nov 9.. ISSN 1661-8556 https://researchonline.lshtm.ac.uk/id/eprint/3172389 Full text not available from this repository.

Eickmann, S; Lima, A; Guerra, M; Lira, PIC; Huttly, S; Ashworth, A; (2003) Improved cognitive and motor development in a communiy-based intervention of psychosocial stimulation in northeast Brazil. Developmental medicine and child neurology, 45 (8). pp. 536-541. ISSN 0012-1622 DOI: https://doi.org/10.1017/S0012162203000987 Full text not available from this repository.

Lawn, JE; Mwansa-Kambafwile, J; Horta, BL; Barros, FC; Cousens, S; (2010) 'Kangaroo mother care' to prevent neonatal deaths due to preterm birth complications. International journal of epidemiology, 39. pp. 144-154. ISSN 0300-5771 DOI: https://doi.org/10.1093/ije/dyq031