About USMLE 123 Step: USMLE 123 Steps is established after human anatomy and physiology school to cover all medical subjects. It is free site offer material collected from different resource including books, websites, videos, presentations, etc. All material was collected by Dr. Manal Abuelazaem who completed a BS in Medicine and Surgery and Advanced Diploma in Software engineering. She established USMLE123Steps and ManalSoft.com to offer free and affordable medical material to all students in form of web and mobile apps published by apple appstore, google play store and Amazon store. All material was collected and carefully organized to offer the best benefits for medical students. About Us: USMLE 123 Steps is established started as human anatomy and physiology school which was established in 2012 by Dr. M. Abuelazaem, MD and MSCS. It is owned and managed by ManalSoft.com. Email: info@usmle123step.com or info@manalsoft.com.