4 citations
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September 2013 in “Journal of Plastic Surgery and Hand Surgery” A girl with a rare syndrome had successful hair loss treatment with no relapse after 4 years.
May 2015 in “Cancer research” After chemotherapy for early breast cancer, 33.4% of patients had long-term significant hair loss, with some hair regrowth over time, but treatments for hair loss were largely ineffective.
January 2015 in “British journal of medicine and medical research” A woman with severe hair loss due to systemic sclerosis regrew her hair in 4 months using a combination of treatments.
January 2013 in “프로그램북(구 초록집)” Hair perms or treatments seem safe to use up to 3 to 4 times during pregnancy.
Hair loss can happen after severe H1N1 flu but usually grows back in 4 months.
40 citations
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June 2009 in “Journal of Cutaneous Pathology” AGA patients have fewer hairs and smaller follicles; T:V ratio above 4:1 may indicate AGA.
21 citations
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September 2013 in “Journal of circadian rhythms” Intense exercise at night can delay the body's internal clock gene expression by 2 to 4 hours.
17 citations
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January 1997 in “Cell and Tissue Research” Scientists developed a method to grow human fetal skin and digits in a lab for 3-4 weeks, which could help study skin features and understand genetic interactions in tissue formation.
11 citations
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July 2008 in “Facial Plastic Surgery Clinics of North America” Hair restoration surgery redistributes existing hair to achieve a natural look, with visible regrowth in 3-4 months and rare complications, mostly aesthetic.
3 citations
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February 2014 in “Atlas of the Oral and Maxillofacial Surgery Clinics” New facelift techniques lead to less scarring and faster recovery, with high patient satisfaction after 4 years.