TY - GEN TI - Over-density of population in cities [A letter to the Scientific American, 1879] SN - 1464-3685 PY - 2018///0228 KW - Cities KW - Crowding KW - England KW - Humans KW - Urban Population N1 - Publication Type: Journal Article UR - https://doi.org/10.1093/ije/dyv133 ER -