− | Severity of clinicals signs is inversly proportional to amount ingested <ref name="multiples">http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/210900.htm, accessed on 31.10.2010 </ref> | + | Severity of clinicals signs is inversely proportional to amount ingested. Time post-ingestion is also important.<ref name="multiples">http://www.merckvetmanual.com/mvm/index.jsp?cfile=htm/bc/210900.htm, accessed on 31.10.2010 </ref>. |