TY - RPRT TI - Age- and sex-dependent sibling effects on early-life survival in preindustrial humans AU - Spa, M. AU - Young, E. A. AU - Lummaa, V. AU - Postma, E. AU - Dugdale, H. PY - 2025 DO - 10.1101/2025.06.30.661956 UR - https://www.biorxiv.org/content/10.1101/2025.06.30.661956v1 ID - 10.1101/2025.06.30.661956 ER -