title: The effects of immobilization on spermatogenesis in subhuman primates.
mesh_terms: D000818:Animals; D001706:Biopsy; D000882:Haplorhini; D007103:Immobilization; D008297:Male; D013026:Space Flight; D013094:Spermatozoa; D013737:Testis / Q000166:cytology*