So, the diet question's really interesting. So, before the 1960s, diet used to be something that everybody got told about as far as treating their acne goes. You know, acne sufferers were told by dermatologists in the '50s and '60s, "It's really important that you don't have sweets and sugar." But after two really pivotal studies in the 1960's, that completely fell out of favour. So, dermatologists then started advising their patients, "There's no role whatsoever." But certainly in the past ten years, there is growing evidence that in a select group of patients, acne in particular, high GI foods, so refined sugars and processed foods, and to a lesser degree, dairy, does actually have a role to play.