Shoulder Button Howie Coat Does Anyone Have Or Know Where I Can Find A Sewing Pattern For A Howie Style Lab Coat?

Does anyone have or know where I can find a sewing pattern for a Howie style lab coat? - shoulder button howie coat

I mean the cross on the shoulder buttons and the style aside, more recently made famous by the title role in "Dr. Horrible's Sing-Along Blog." Research on the Web seems to represent a large number of sites with people that question, or all the words, but they are no real trend.