research Can the Second to Fourth Digit Ratio (2D:4D) Be a Marker to Determine Ankylosing Spondylitis Disease Activity?
The index to ring finger ratio may indicate disease severity in female ankylosing spondylitis patients, but not in males.
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research Digit-Length Ratios (2D:4D) as a Phenotypic Indicator of In Utero Androgen Exposure Is Not Prognostic for Androgenic Alopecia: A Descriptive-Analytic Study of 1200 Iranian Men
Finger length ratios don't predict baldness in men.
research The Use of 2D:4D Digit Ratio as a Predictor of Androgenetic Alopecia: A Review
Finger length ratios might help predict common hair loss.
research An Isolated, Implausibly Large Effect in a Case-Control Study of Digit Ratio (2D:4D) and Male Androgenetic Alopecia: Comment on Unal
Digit ratio likely doesn't predict male hair loss.
research Are 2D:4D Finger-Length Ratios an Indicator of Androgenetic Alopecia in Males?
Right hand finger ratio may predict male hair loss.
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