APA

Machen D. E., . (19910401). Legal aspects of orthodontic practice: risk management concepts. Written treatment requests avoid problems. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

Chicago

Machen D E, . 19910401. Legal aspects of orthodontic practice: risk management concepts. Written treatment requests avoid problems. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

Harvard

Machen D. E., . (19910401). Legal aspects of orthodontic practice: risk management concepts. Written treatment requests avoid problems. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics.

MLA

Machen D E, . Legal aspects of orthodontic practice: risk management concepts. Written treatment requests avoid problems. : American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics. 19910401.