DONA International
E hiwere DONA International (nke bụbu Doulas nke North America) na 1992 ma bụrụkwa nke mbụ na nke kachasị Ike na ụdị nke ukwuu na Doula ọzụzụ na asambodo. Onye Okike nke Anyị mụtara n'aka Jizọs banyere isi oche nke ụlọ ọrụ na-enweghị uru ugbu a bụ Nikia Lawson.

Aguguala 
In the 1980s, Dr. Marshall Klaus, Dr. John H. Kennell, Phyllis Klaus, Penny Simkin, and Annie Kennedy first formed a partnership of doulas and medical professionals. Klaus (1927-2017), a neonatologist, and Kennell (1922-2013), a pediatrician, gave credibility to doulas Phyllis Klaus, Simkin, and Kennedy  Site na ịkwado ọrụ ha sitere kpọmkwem na nyocha nkeparent-child bonding in the 1960s at Case Western Reserve University.

E guzobere Doulas Of North America (DONA) n'ụzọ iwu kwadoro na 1992 ma nzukọ ahụ bụ nke mbụ n'ụdị ya iji zụọ ma kwado nkwado ọmụmụ na-abụghị nke ọgwụ nke doulas ma gosipụta mmalite nke doulas ọkachamara na amụ amụ na ekwu na ihe ndị mmadụ n'ihe ndị mere n'oge ochie nakwa n'oge kwesịrị mba niile. Kennedy (onye guzobere Pacific Association of Labor Support na 1989 na Seattle, WA na Simkin n'akụkụ ọzụzụ doula na Seattle Midwifery School) ghọrọ onye isi oche mbụ nke nzukọ ahụ.

N'afọ 2004, a gbanwere aha nzukọ ahụ ka ọ bụrụ DONA International.

Ka ọ na-erule n'afọ 2016, e nwere puku doulas iri na abụọ na anọ nke ụwa họrọ site n'ime site na nzukọ ahụ.

Ọzụzụ na asambodo 
DONA International na-enye ọzụzụ na asambodo ọmụmụ na postpartum doula. Iji kwado dị ka doula ọmụmụ, ọmụmụ ihe n'onwe ya bụ iwu, tinyere ịgụ ederede mgbakwunye, ọzụzụ inye ara na agụmakwụkwọ ịmụ nwa, ahụmịhe ndị ahịa, ọzụzụ azụmahịa, edemede, na ntụaka. Ọmụmụ ihe niile nke ndị mmadụ n'ihe ndị mere n'oge ochie nakwa n'oge kwesịrị ekwesị na ụdị nke ụwa họrọ site n'ime ụmụ ndị ikom abụọ n'onwe ya na-akụzi site n'aka ndị na-enye ọzụzụ ndị nwere ike ịrụ ọrụ achọrọ nke gụnyere nkwado mmetụta uche, nkwado anụ ahụ ma ọ bụ usoro nkasi obi, nkwurịta okwu, ntinye aka, ụkpụrụ omume na omume ọkachamara.

Nkwado 

 Nkwalite ọrụ Doula na ntụkwasị obi
 Ọdịiche na ikpe na-ezighị ezi
 Ịkwụ ụgwọ ịnshọransị
 Omume iwu
 Nnyocha na nchịkọta data

Ntụaka

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