Assertion: semen's sperm | /r/HasProperty | linked to increase
Facets:
value: likewise
type: DEGREE
Source sentences:
text: While advanced age can be a possible factor in sperm motility and health, the sperm of men below 20 years of age has likewise been linked to an increase in birth defects such as neural tube defects, hypospadias, cystic kidney, and Down syndrome.