Here are things people can say to get doctor off your back. "We are still doing some research on that particular shot. I am looking into safety..., maybe my child still too fragile as a newborn and should this one be delayed? Perhaps my newborn at not actually at risk of hepatitis right now..., does this one contain thimerosal as it is a multi-dose bottle?..., are there any side effects of this one?..., etc. In the meantime, my child is healthy and thriving, I am nursing my child, giving him my immunity, and keeping him close." You could even appeal to the doctor's ego and ask them for any research they can send you. "Oh great and powerful doctor!" Might even make them think a bit if they aren't just in it for the Vax $$.