Multivariable prediction models for difficult direct laryngoscopy: Systematic review and literature metasynthesis.

Context: The difficult airway is an important scenario in anaesthesia due to the impact of its potential complications, and the difficulty in predicting its presence in current clinical practice.

Methods: Systematic review of articles in English and Spanish retrieved from MEDLINE (Ovid), LILACS and EMBASE up to March 2018. The search strategy was defined by the authors.

Identification of biomedical journals in Spain and Latin America.

Objectives: Journals in languages other than English that publish original clinical research are often not well covered in the main biomedical databases and therefore often not included in systematic reviews. This study aimed to identify Spanish language biomedical journals from Spain and Latin America and to describe their main features.

Methods: Journals were identified in electronic databases, publishers' catalogues and local registries.