id	keyword
aiua-11157	semen
aiua-11157	study
aiua-11157	covid-19
aiua-11157	group
aiua-11157	sperm
aiua-11157	parameters
aiua-11157	analysis
aiua-11157	micronutrient
aiua-11157	quality
aiua-11157	disease
aiua-11157	sars
aiua-11157	cov-2
aiua-11157	control