Efficacy and Safety of Platelet-Rich Plasma Therapy in Alopecia Areata Patients: A Systematic Review

Table 1

Detailed search strategy used for each database.

Database	Search string
PubMed	((“platelet-rich plasma” OR “PRP” OR “platelets rich plasma” OR “platelet-rich plasma”) AND (“alopecia areata” OR “alopecia”))
Embase	(“platelet-rich plasma” OR “PRP” OR “platelets rich plasma” OR “platelet-rich plasma”) AND (“alopecia areata” OR “alopecia”)
Cochrane libraries	(title: (“platelet-rich plasma” OR “PRP” OR “platelets rich plasma” OR “platelet-rich plasma”) AND title:(“alopecia areata” OR “alopecia”))