{Reference Type}: Journal Article {Title}: S1 guidelines: Gynecomastia in adults. {Author}: Schanz S;Schreiber G;Zitzmann M;Krapohl BD;Horch R;Köhn FM; {Journal}: J Dtsch Dermatol Ges {Volume}: 15 {Issue}: 4 {Year}: Apr 2017 {Factor}: 5.231 {DOI}: 10.1111/ddg.13080 {Abstract}: