Rasmussen PE, Nielsen FR (March 1988). "Hydronephrosis during pregnancy: a literature survey". European Journal of Obstetrics, Gynecology, and Reproductive Biology. 27 (3): 249–59. doi:10.1016/0028-2243(88)90130-x. PMID3280355.
Dunning K, LeMasters G, Levin L, Bhattacharya A, Alterman T, Lordo K (December 2003). "Falls in workers during pregnancy: risk factors, job hazards, and high risk occupations". American Journal of Industrial Medicine. 44 (6): 664–72. doi:10.1002/ajim.10318. PMID14635243.
Foti T, Davids JR, Bagley A (May 2000). "A biomechanical analysis of gait during pregnancy". The Journal of Bone and Joint Surgery. American Volume. 82 (5): 625–32. doi:10.2106/00004623-200005000-00003. PMID10819273.
Campbell LA, Klocke RA (April 2001). "Implications for the pregnant patient". American Journal of Respiratory and Critical Care Medicine. 163 (5): 1051–4. doi:10.1164/ajrccm.163.5.16353. PMID11316633.
Rasmussen PE, Nielsen FR (March 1988). "Hydronephrosis during pregnancy: a literature survey". European Journal of Obstetrics, Gynecology, and Reproductive Biology. 27 (3): 249–59. doi:10.1016/0028-2243(88)90130-x. PMID3280355.
Dunning K, LeMasters G, Levin L, Bhattacharya A, Alterman T, Lordo K (December 2003). "Falls in workers during pregnancy: risk factors, job hazards, and high risk occupations". American Journal of Industrial Medicine. 44 (6): 664–72. doi:10.1002/ajim.10318. PMID14635243.
Foti T, Davids JR, Bagley A (May 2000). "A biomechanical analysis of gait during pregnancy". The Journal of Bone and Joint Surgery. American Volume. 82 (5): 625–32. doi:10.2106/00004623-200005000-00003. PMID10819273.
Campbell LA, Klocke RA (April 2001). "Implications for the pregnant patient". American Journal of Respiratory and Critical Care Medicine. 163 (5): 1051–4. doi:10.1164/ajrccm.163.5.16353. PMID11316633.