Also known as male and female pattern baldness this is the most frequent cause of hair loss. They are generally divided into two groups.
Schematic Diagram Of The St Johns Non Scarring Alopecia Protocol https://www.researchgate.net/figure/Schematic-diagram-of-the-St-Johns-non-scarring-alopecia-protocol_fig12_40893896
Psoriatic Alopecia Fact Or Fiction A Clinicohistopathologic http://www.ijdvl.com/article.asp?issn=0378-6323;year=2012;volume=78;issue=5;spage=611;epage=619;aulast=Silva
Hair Loss Understanding Scarring Vs Non Scarring Alopecias The https://michiganskinassociates.wordpress.com/2014/07/11/hair-loss-understanding-scarring-vs-non-scarring-alopecias/