Does anyone know of anywhere online that stocks this toothpaste? DS hates toothpaste (ASD) and was given some of this to try by the paediatrician, it is now the only toothpaste he will use. Paediatrician has run out and doesn't know where it was ordered from in the first place. I looked online and found a dentist at the other end of the country who sells it on their website but doesn't ship it. Google is giving me a million dead ends 