Midwifery · 2007 · 32 citations · 21 references
MedicineMaternal HealthObstetricsHigh-risk PregnancyPreterm BirthReproductive HealthBirth CareCare Of Premature InfantsPregnancyPrenatal CarePreterm Birth EpidemiologyRisk Factors For Preterm BirthLate Preterm BirthMaternal Demographic DeterminantsPreterm Birth ClassificationPreterm Birth DisparitiesPreterm Birth Prevalence
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Qualitative evaluation and research methods
Michael Quinn Patton · 1990 · 21.8K citations
Qualitative evaluation and research methods
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