Common errors in selecting and implementing pen–paper observational methods by Iranian practitioners for assessing work-related musculoskeletal disorders risk: a systematic review

• Abdolhamid TajvarShiraz University of Medical Sciences
• Hadi DaneshmandiShiraz University of Medical Sciences
• Elahe DortajShiraz University of Medical Sciences
• Mozhgan SeifShiraz University of Medical Sciences
• Hossein ParsaeiShiraz University of Medical Sciences
• Mahnaz ShakerianIsfahan University of Medical Sciences
• Alireza ChoobinehShiraz University of Medical Sciences