In 2011 58% of 312 million Americans (i.e. 181 million Americans) had health cover i.e. 312 million - 181 million = 131 million didn't (see "Health Insurance", Wikipedia: http://en.wikipedia.org/wiki/Health_insurance ).
1 million Americans die preventably each year under a Neocon American and Zionist Imperialist One Percenter regime, the breakdown being 443,000 (smoking), 300,000 (obesity), 75,000 (alcohol), 70,000 (air pollution), 45,000 (lack of health cover), 33,000 (motor vehicles), 31,000 (guns), 30,000 (suicides, 20% being US veterans), 21,000 (under-5 year old infants), 21,000 (opiates from US Alliance including Australia restoration of the Taliban-destroyed Afghan opium industry from 6% of world market share in 2001 to 90% today), and 15,000 (homicides). One should not e that some of these categories overlap and some categories (e.g. deaths from smoking and obesity) won’t respond immediately to action taken now after decades of inaction (Google "1 million Americans die preventably" ).
Of these 1 million Americans who die preventably each year, according to Harvard Medical School 45,000 die from lack of health insurance each year (see “New study finds 45,000 deaths annually linked to lack of health coverage”, Harvard Gazette: http://news.harvard.edu/gazette/story/2009/09/new-study-finds-45000-deaths-annually-linked-to-lack-of-health-coverage/ ; ” Google "1 million Americans die").
Obama added over 30 million Americans to health cover, this fortunately being backed by the US Supreme Court (see “Editorial: Supreme Court ObamaCare ruling benefits milloins”, USA Today, 28 June 2012: http://usatoday30.usatoday.com/news/opinion/editorials/story/2012-06-28/Supreme-Court-ruling-ObamaCare/55902476/1 ).
However, Christian Zionist and racist, religious right Republican (R4)-backed Mitt Romney has vowed to reverse Obamacare (see "Romney vows he'll nix health care law", The Gazette, Montreal, 30 June 2012: http://www.montrealgazette.com/health/Romney+vows+health+care/6867219/story.html ).
R4-backed, Christian Zionist Mitt Romney's policy of removing 30 million Americans from ObamaCare will KILL an estimated 45,000 x 30 million/131 million = 10,305 Americans EACH YEAR or about 4 x 10,305 = 41,220 over 1 term and 8 x 10,305 = 82,440 over a 2-term period.
Cause and effect instructs that Americans voting for Mitt Romney will be inescapably complicit in the killing of over 40,000 fellow Americans over 4 years or 80,000 fellow Americans over 8 years through lack of health cover.