1. Alar collapse;Bull;Facial Plast Surg,1986
2. Thoughtful nasal tip surgery;Smith;Arch Otolaryngol,1973
3. Open structure rhinoplasty;Johnson,1989
4. Rhinoplasty tip ptosis: etiology and prevention;Tardy;Laryngoscope,1973
5. Changing the body: psychological effects of plastic surgery;Goin,1981