1. Department of Dermatology; University Hospital ‘Dr. José Eleuterio González’; Monterrey México
2. Department of Pathology; University Hospital ‘Dr. José Eleuterio González’; Monterrey México
3. Neumology Service; University Hospital ‘Dr. José Eleuterio González’; Monterrey México
4. Department of Internal Medicine; University Hospital ‘Dr. José Eleuterio González’; Monterrey México
5. Service of General Surgery; University Hospital ‘Dr. José Eleuterio González’; Monterrey México