Precision Scientific Editing

“John is a wonderfully organized person who amazingly feels responsible for the work given to him. I always feel confident in English writing since I know somebody as talented as John edits poorly written English texts. 

I have had the honor to know John for more than one year since I wrote one of my articles in English, and it needed comprehensive editing, which John accepted kindly to edit. I was particularly impressed with how wonderfully he edited such text in incredibly short time, and I was lucky to have him edit my next three articles as well. John is not only able to edit poorly written English manuscripts into acceptable, understandable articles that would get published in well-known journals, but also he gives valuable advice in terms of how to modify every section of a manuscript, to have a professional, well-written article. I was always amazed with how he could change whole the sentence to another one with totally different words but still holding the same considered concept, with the easiest method to approve the final changes and get the text ready for submitting. 

I certainly recommend John for editing any texts whose authors need quick, fabulous English editing."
Katayoun Samadi, MD
Shahid Beheshti University of Medical Sciences
Tehran, Iran

"The English language editing work of Mr. John McCool is excellent. I am a Chinese doctor and interested in writing academic papers. Not being a native English speaker, I usually get my manuscripts edited by a native speaker before I submit them. This time I used the services of Precision Scientific Editing and had a wonderful experience working with Mr. McCool. He was very efficient with the editing work, and the price was reasonable. In addition to correcting spelling and grammatical errors, he polished the whole manuscript with the eye of a medical specialist. Drawing on his medical background, he gave me some very useful recommendations for improving the manuscript. We communicated several times in a very efficient way for getting all my questions satisfactorily answered. After my manuscript was edited, I feel it had been improved to a new level. I recommend that researchers in all medical fields employ the services of Mr. John McCool."

Haibo Shao, MD

Professor & Chief Physician

First Hospital of China Medical University

Shenyang, China

"John is amazing at editing literally everything! Articles, letters, personal statements, you name it! He is committed, accurate, and right on time! Highly recommended!"

​Nava Azimzadeh, MD

​Postdoctoral Research Fellow

​Thomas Jefferson Hospitals

Philadelphia, Pennsylvania

"John is professional and has a great work ethic. He did a great job editing my documents and personal statement. He is responsible and perfectly knows how to edit the text for professional purposes. Highly recommended!"

Jeiran Eskandari, MD​

​Memorial Hermann  Healthcare System

​Houston, Texas

"John did a great job editing my personal statement. A friend of mine introduced him to me, and I would highly recommend him to anyone who needs editing or revision of articles or statements. He replies promptly and returns the edited version quickly."

Golnaz Namazi, MD

Research Fellow

Brigham and Women's Hospital

Boston, Massachusetts

"John did a great job editing my statement letters. He is very well-experienced, responsive, and cooperative. I would highly recommend him to my colleagues and friends, and I will definitely work with him again in the future."

Nahal Farhani, MD
Postdoctoral Fellow
University of Toronto

Toronto, Canada

"John has excellent scientific writing and editing skills and is very professional. I highly recommend him to anyone who needs scientific editing assistance."

Pezhman Mobasher, MD​

​Clinical Research Fellow

Department of Dermatology

University of California-Irvine


"John edited my statement of purpose, and he did a great job. Very precise and professional, and he returned it in just 2 days. Also, he responds promptly. I strongly recommend him to anyone who needs professional editing."

Leili Rahimi, MD

Case Western Reserve University

Cleveland, Ohio


​"John did a wonderful job editing my personal statement. He did a great job editing my husband's statement, too, and I would highly recommend him to anyone who needs editing of articles or statements."

Sadaf Mirkarimi, MD
Postdoctoral Research Fellow
Department of Immunology
Rush University Medical Center
Chicago, Illinois

"John is a great writer and editor. He edited my personal statement in only one day, and it was amazing! I highly recommend him to any scientist or physician who needs any type of editing assistance. In fact, I have already recommended him to members of my residency group."

Ashley Amirhamzeh, MD

​Clinical Research Coordinator

American Institute of Research

​Los Angeles, California

"John did an excellent job with editing my essay. He is reliable and well experienced at what he is doing. I found his recommendations completely professional. The best part was that he edited my writing in a short time and precisely. I will definitely work with him again and would highly recommend him to my colleagues for scientific editing."

​Mahsa Mohammadian, MD

General Physician

"Mr. McCool helped my friend’s academic group in Japan polish their scientific paper. We have been impressed with his professional and punctual work. Highly recommended."
Zhenbin Niu, PhD
Senior Product Development Chemist
Dow Corning
Midland, Michigan