| Code | 
Subtheme | 
Theme | 
| Proper Tutoring | 
Better tutoring | 
Quality of tutors | 
| Effective feedback to tutors | 
| Consistent tutors' facilitation | 
| Expert tutors' tutoring | 
| Well-planned tutor allocation | 
| Training of trainer | 
| More case scenarios | 
Better scenarios | 
Quality of case-scenarios | 
| Scenarios with untypical symptoms | 
| Upgrading scenarios | 
| Providing more laboratory data | 
| Well-planned time scheduling | 
Rearrangement of PBL tutorials | 
Innovation of learning strategy | 
| Proper assigning learning topics to members | 
| Proper and accurate assessments | 
| Better understanding of study objectives | 
| Introduction of simulated patients to PBL tutorials | 
New learning methods | 
| Case simulation in more active ways | 
| Teaching aids such as e-learning | 
								Int J Med Educ. 2022; 13:322-334; doi: 10.5116/ijme.6399.dee1