The inclusion criteria were as follows: medical history hospital stay and office visit being completely documented; being in good health; having no underlying lung disease secondary pneumothorax; not having previously undergone thoracic surgery; and being between 21 and 55 years of age.
Documentación completa en las historias, tanto de la hospitalización como de la consulta externa. Pacientes sanos adultos sin enfermedad pulmonar de base neumotórax secundario, o intervención torácica previa, edad entre 21 y 55 años.