Pam Parks says she has a routine to pick herself up before she starts every one of her 12-hour hospital shifts these days.

The registered practical nurse drives the five minutes to work at an Oshawa, Ont., hospital with her car radio turned up and sings along in a bid to lift her spirits.

She tries to take her mind, ever so briefly, off the stress, uncertainty and large workload that awaits her in the emergency room that day, as the

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