Brad Gulmi has done it again. The entrepreneur, who sold his first venture, Diabetes Care Club, in 2007, has now sold his second, Medical Direct Club, to Florida-based competitor Comfort Medical. The deal proves there's still substantial deal flow in the health care industry as we wind down acquisition-heavy 2015 and look to enter 2016. (In fact, it's the third health care sale you'll find on our website today.) Gulmi, who founded the direct-to-consumer provider of urological supplies in 2009,...