WierzchoĹ›, E Superovulation of a low fecundity sheep breed using a porcine gonadotrophin extract with a defined LH content (Pluset). [electronic resource] - Theriogenology Jul 1992 - 147-52 p. digital Publication Type: Journal Article ISSN: 0093-691X Standard No.: 10.1016/0093-691x(92)90226-h doi