articleKey Development Concept: Crossing the MidlineSep 23, 2022 • 6 min readMedically Reviewed by Dr. James Adams, PHDArticleActivitiesBrainDevelopmentShare:Sourceshttps://www.mayoclinic.org/diseases-conditions/male-infertility/symptoms-causes/syc-20374773https://www.nytimes.com/article/male-infertility-guide.htmlhttps://www.hopkinsmedicine.org/health/conditions-and-diseases/male-infertilityhttps://www.nichd.nih.gov/health/topics/menshealth/conditioninfo/infertilityShare: