TY - GEN AU - Bacon,Andrew TI - Polymers--a synthetic or natural choice? SN - 1359-6446 PY - 2003///0219 KW - Animals KW - Biological Factors KW - chemical synthesis KW - Humans KW - Polymers N1 - Publication Type: Comment; Comparative Study; Letter UR - https://doi.org/10.1016/s1359-6446(02)02531-x ER -