Any recommended hair translpant doctors in southern california?

Can anyone recommend a good doctor for hair transplant surgery?

Ive come across a few doctors while searching on the internet. Ive looked up Dr. Sword in torrance, ca but they say hes a quack on the forums.

Ive also hear of Dr Kahen in Beverly Hills Ca. but I havent heard of his credentials. can anyone help me out with that?

I know that Dr. Kenneth Siporin, Dr. Marc Dauer, and Dr. Paul McAndrews all do excellent work in Southern California. Not saying those are the only good doctors there, just giving you a couple of doctors who I have seen get very impressive results.

thanks for the help