1. Alam M, White LE, Martin N, et al. Ultrasound tightening of facial and neck skin: a rater-blinded prospective cohort study. J Am Acad Dermatol 2010;62:262-9.
2. Dover JS, Zelickson B. Results of a survey of 5,700 patient monopolar radiofrequency facial skin tightening treatments: assessment of a low-energy multiple-pass technique leading to a clinical end point algorithm. Dermatol Surg 2007;33:900-7.
3. Fitzpatrick R, Geronemus R, Goldberg D, et al. Multicenter study of noninvasive radiofrequency for periorbital tissue tightening. Lasers Surg Med 2003;33:232-42.
4. Fitzpatrick RE, Goldman MP, Satur NM, et al. Pulsed carbon dioxide laser resurfacing of photo-aged facial skin. Arch Dermatol 1996;132:395-402.
5. Goco PE, Stucker FJ. Subdermal carbon dioxide laser cutaneous contraction. Arch Facial Plast Surg 2002;4:37-40.
6. Kim KH, Geronemus RG. Nonablative laser and light therapies for skin rejuvenation. Arch Facial Plast Surg 2004;6:398-409.
7. Kirsch KM, Zelickson BD, Zachary CB, et al. Ultrastructure of collagen thermally denatured by microsecond domain pulsed carbon dioxide laser. Arch Dermatol 1998;134:1255-9.
8. Zelickson BD, Kist D, Bernstein E, et al. Histological and ultrastructural evaluation of the effects of a radiofrequency-based nonablative dermal remodeling device: a pilot study. Arch Dermatol 2004;140:204-9.
10. Fabi SG, Goldman MP. Retrospective evaluation of micro-focused ultrasound for lifting and tightening the face and neck. Dermatol Surg 2014;40:569-75.
11. Laubach HJ, Makin IR, Barthe PG, et al. Intense focused ultrasound: evaluation of a new treatment modality for precise microcoagulation within the skin. Dermatol Surg 2008;34:727-34.
12. White WM, Makin IR, Barthe PG, et al. Selective creation of thermal injury zones in the superficial musculoaponeurotic system using intense ultrasound therapy: a new target for noninvasive facial rejuvenation. Arch Facial Plast Surg 2007;9:22-9.
13. Ghassemi A, Prescher A, Riediger D, et al. Anatomy of the SMAS revisited. Aesthetic Plast Surg 2003;27:258-64.
14. Har-Shai Y, Bodner SR, Egozy-Golan D, et al. Mechanical properties and microstructure of the superficial musculoaponeurotic system. Plast Reconstr Surg 1996;98:59-70.
15. Kikkawa DO, Lemke BN, Dortzbach RK. Relations of the superficial musculoaponeurotic system to the orbit and characterization of the orbitomalar ligament. Ophthal Plast Reconstr Surg 1996;12:77-88.
16. Psillakis JM, Rumley TO, Camargos A. Subperiosteal approach as an improved concept for correction of the aging face. Plast Reconstr Surg 1988;82:383-94.
17. Fabi SG, Massaki A, Eimpunth S, et al. Evaluation of microfocused ultrasound with visualization for lifting, tightening, and wrinkle reduction of the decolletage. J Am Acad Dermatol 2013;69:965-71.
18. Alster TS, Tanzi E. Improvement of neck and cheek laxity with a nonablative radiofrequency device: a lifting experience. Dermatol Surg 2004;30:503-7.
19. Kennedy JE, Ter Haar GR, Cranston D. High intensity focused ultrasound: surgery of the future? Br J Radiol 2003;76:590-9.
20. Har-Shai Y, Sela E, Rubinstien I, et al. Computerized morphometric quantitation of elastin and collagen in SMAS and facial skin and the possible role of fat cells in SMAS viscoelastic properties. Plast Reconstr Surg 1998;102:2466-70.
21. Mendelson BC. Surgery of the superficial musculoaponeurotic system: principles of release, vectors, and fixation. Plast Reconstr Surg 2001;107:1545-52.
22. Mitz V, Peyronie M. The superficial musculo-aponeurotic system (SMAS) in the parotid and cheek area. Plast Reconstr Surg 1976;58:80-8.
23. Thaller SR, Kim S, Patterson H, et al. The submuscular aponeurotic system (SMAS): a histologic and comparative anatomy evaluation. Plast Reconstr Surg 1990;86:690-6.
24. Hayashi K, Thabit G, Massa KL, et al. The effect of thermal heating on the length and histologic properties of the glenohumeral joint capsule. Am J Sports Med 1997;25:107-12.
25. Gliklich RE, White WM, Slayton MH, et al. Clinical pilot study of intense ultrasound therapy to deep dermal facial skin and subcutaneous tissues. Arch Facial Plast Surg 2007;9:88-95.
26. Ferraro GA, De Francesco F, Nicoletti G, et al. Histologic effects of external ultrasound-assisted lipectomy on adipose tissue. Aesthetic Plast Surg 2008;32:111-5.