Professional and Linguistic Assessments Board (PLAB). PLAB International: 300 MCQs. 2026-2027 International Edition: Practice Questions with Answers and Detailed Explanations. PLAB Clinical Assessment and Diagnostic Reasoning. PLAB Emergency Medicine and Resuscitation. PLAB Cardiovascular Medicine. PLAB Respiratory Medicine. PLAB Gastroenterology and Hepatology. PLAB Neurology and Neurosurgical Emergencies.