Takacs P, De Santis T, Nicholas MC, Verma U, Strassberg R, Duthely L (November 2005). "Echogenic endometrial fluid collection in postmenopausal women is a significant risk factor for disease". J Ultrasound Med. 24 (11): 1477–81. doi:10.7863/jum.2005.24.11.1477. PMID16239648. S2CID20258522.
Blackburn, D. G.; Flemming, A. F. (2011). "Invasive implantation and intimate placental associations in a placentotrophic African lizard, Trachylepis ivensi (scincidae)". Journal of Morphology. 273 (2): 137–59. doi:10.1002/jmor.11011. PMID21956253. S2CID5191828.
Takacs P, De Santis T, Nicholas MC, Verma U, Strassberg R, Duthely L (November 2005). "Echogenic endometrial fluid collection in postmenopausal women is a significant risk factor for disease". J Ultrasound Med. 24 (11): 1477–81. doi:10.7863/jum.2005.24.11.1477. PMID16239648. S2CID20258522.
Blackburn, D. G.; Flemming, A. F. (2011). "Invasive implantation and intimate placental associations in a placentotrophic African lizard, Trachylepis ivensi (scincidae)". Journal of Morphology. 273 (2): 137–59. doi:10.1002/jmor.11011. PMID21956253. S2CID5191828.
Takacs P, De Santis T, Nicholas MC, Verma U, Strassberg R, Duthely L (November 2005). "Echogenic endometrial fluid collection in postmenopausal women is a significant risk factor for disease". J Ultrasound Med. 24 (11): 1477–81. doi:10.7863/jum.2005.24.11.1477. PMID16239648. S2CID20258522.
Blackburn, D. G.; Flemming, A. F. (2011). "Invasive implantation and intimate placental associations in a placentotrophic African lizard, Trachylepis ivensi (scincidae)". Journal of Morphology. 273 (2): 137–59. doi:10.1002/jmor.11011. PMID21956253. S2CID5191828.