TY - JOUR T1 - You can observe a lot by watching JF - Cleveland Clinic Journal of Medicine JO - Cleve Clin J Med SP - 440 LP - 442 DO - 10.3949/ccjm.86a.19056 VL - 86 IS - 7 AU - Salvatore Mangione Y1 - 2019/07/01 UR - http://www.ccjm.org/content/86/7/440.abstract N2 - ER -