Further from the AVMA... " Breed bans do not address the social issue of irresponsible pet ownership.
Dogs are more likely to become aggressive when they are unsupervised, unneutered, and not socially conditioned to live closely with people or other dogs. Banning a specific breed can give a community a false sense of security, and deemphasize to owners of other breeds the importance of appropriate socialization and training, which is a critical part of responsible pet ownership. In enacting breed-specific legislation, cities and states will spend money trying to enforce ineffective bans and restrictions rather than implementing proven solutions, such as licensing and leash laws, and responding proactively to owners of any dog that poses a risk to the community."

Also see:

The 3rd Dog Health Workshop reading list Theme Behaviour and Welfare for puppy socialization information

Puppy Socialization in 5 Points - Poster

Behaviour & Welfare Resources

Behaviour and Training

Videos on canine behaviour, puppy socialization and training... Resources include Testing programs, Apps, and the human elements and attitudes that impact dog health and welfare.