Frøen, J. Frederik; Heazell, Alexander E. P.; Tveit, Julie Victoria Holm; Saastad, Eli; Fretts, Ruth C.; Flenady, Vicki (2008-08-01). "Fetal Movement Assessment". Seminars in Perinatology. Antenatal Testing: A Re-Evaluation (به انگلیسی). 32 (4): 243–246. doi:10.1053/j.semperi.2008.04.004. ISSN0146-0005.
Frøen, J. Frederik; Heazell, Alexander E. P.; Tveit, Julie Victoria Holm; Saastad, Eli; Fretts, Ruth C.; Flenady, Vicki (2008-08-01). "Fetal Movement Assessment". Seminars in Perinatology. Antenatal Testing: A Re-Evaluation (به انگلیسی). 32 (4): 243–246. doi:10.1053/j.semperi.2008.04.004. ISSN0146-0005.
Frøen, J. Frederik; Heazell, Alexander E. P.; Tveit, Julie Victoria Holm; Saastad, Eli; Fretts, Ruth C.; Flenady, Vicki (2008-08-01). "Fetal Movement Assessment". Seminars in Perinatology. Antenatal Testing: A Re-Evaluation (به انگلیسی). 32 (4): 243–246. doi:10.1053/j.semperi.2008.04.004. ISSN0146-0005.