The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March. Currently, its remains are traveling eastward across Canada to the United States.

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Ilie Crisan (Tony Kart/Vortex) dived into the lead from Henry Domain (Exprit/TM) and Dean Hoogendoorn (KR/IAME) as poleman William Calleja (Exprit/TM), who had ...

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1 2 If it were possible to avoid complications associated with poor flow control, primary GFS would probably be offered more widely. Trabeculectomy, the procedure of choice in conventional GFS, has ...