Phenomenon of spouses dying close to each other

From MSNBC, an article by health editor Linda Dahlstrom

Never to part: Devoted couples share life, death

"Dying beside the love of your life and passing into eternity together is the stuff of legends, but it’s also a documented phenomenon among longtime couples.

Studies around the world have shown that the rate of mortality spikes among bereaved spouses soon after their beloved has died. One study published last year by researchers at the University of Glasgow followed more than 4,000 couples and found that, on average, widows and widowers were at least 30 percent more likely to die of any cause in the first six months following a spouse’s death than those who hadn’t lost a partner. Another large study in Jerusalem found the bereaved spouse's risk of death during those first six months rose by up to 50 percent.

“We see it all the time,” says Dr. Hope Wechkin, the medical director of Evergreen Hospice in Kirkland, Wash. “Often a patient will come on to [hospice] service and we find out their spouse has died six weeks earlier or so. … I think it’s about connection. For many people, their spouse represents their greatest sense of connection to this world.”

Do any of you know couples in which this phenomenon happened?