If you purchase a puppy from a reputable breeder who has lots of knowledge about the breed and passionately loves it, then you'll meet almost no problems at all. (yorkiemag.com)
Get your small dog from a reputable breeder who has already started puppy socialization with children. (pethelpful.com)
These conditions can be tested for and pups should only be bought from those reputable breeders who hold current testing certificates. (australiandoglover.com)