“…9 In order to be useful, referral documents must provide organized information, rhetorical relevance, appropriate level of detail, and be concise. 12,14 However, several studies have reported that referral letters often lack important information, 7,8,9,10,12,13,15,16 which can result in problems such as improper scheduling, prioritization errors, 9,11,13 unnecessary repetition of tests 7 and, ultimately, inadequate care and delay in treating the illness. 10 Several studies aimed at defining the necessary information for the referral of patients.…”