Relationship of age at menarche, coitarche and first gestation: A retrospective cohort analysis.

Introduction: Teenage pregnancy is defined as a pregnancy occurring between ages 10 and 19 (Loredo-Abdlá et al., 2017; Belitzky, 1985; Kaplanoglu et al., 2015), and is associated with increased morbidity and mortality for both mother and child.

Lower Frequency of Call Shifts Leads to Higher Attendance, Higher Academic Performance, and Less Burnout Syndrome in Surgical Clerkships.

Objective: Clinical clerkships are a fundamental component of medical education where students' learning is aided by exposure to real patients in diverse practical settings. Countless programs use overnight call shifts as an essential part of their clerkships. There has been concerns about the negative effects these shifts have on students.