LMA Classic. (Image Courtesy of LMA North America, Inc.)

Comparison of the Supraglottic Airway Devices Classic, Fastrach and Supreme Laryngeal Mask Airway: A Prospective Randomised Clinical Trial of Efficacy, Safety and Complications. - Abstract - Europe PMC

LMA® Airways, US

Devices and Techniques to Manage the Abnormal Airway (Section 2) - Management of the Difficult Pediatric Airway

LMA Classic. (Image Courtesy of LMA North America, Inc.)

The Laryngeal Mask Airway (LMA™) and Other Extraglottic (Supraglottic) Airway Devices

Vocal Cord Paralysis after Laryngeal Mask Airway Ventilation - Chan - 2005 - The Laryngoscope - Wiley Online Library

Lma Proseal (LMA North America), Bioz

Figure 7 from Supraglottic airway devices in the ambulatory setting.

Laryngeal Mask Airway: Overview, Indications, Contraindications

Figure 1 from Supraglottic airway devices in the ambulatory setting.