Membrane Glycoproteins nonhuman 58 priority journal 58 Animals 56 article 50 controlled study 40 unclassified drug 36 Humans 30 membrane protein 30 Male 24 human 24 Female 18 Rats 18 Spermatozoa 18 animal cell 18 metabolism 18 Mice 16 Protein Binding 16 Receptors, Cell Surface 16 female 16 glycoprotein 16 male 16 rat 16 Antigens, CD 14 chemistry 14 fertilization 14 protein function 14 signal transduction 14 zona pellucida 14 Article 12