September 2020 in “Hair transplant forum international” O'Tar T. Norwood was a key figure in creating a system to classify male baldness and founding hair restoration societies.
16 citations
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October 2012 in “The Journal of Dermatology” The BASP classification is more reliable than the Norwood-Hamilton for classifying hair loss in men and women.
9 citations
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July 2017 in “International Journal of Trichology” No current system perfectly classifies male-pattern hair loss, indicating a need for a new system for better diagnosis and treatment.
101 citations
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January 2016 in “Journal of Cutaneous and Aesthetic Surgery” Different types of hair loss need specific treatments, and while many classification systems exist, each has its flaws; more research is needed to refine these systems and treatments.
July 2007 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” The BASP classification is a detailed system for categorizing hair loss in both men and women, but it may be complex for beginners and not fully suitable for grading female hair loss.