title: Entry criteria influence conclusions about rates of flare in lupus pregnancy: comment on the article by Petri et al.
authors.forename: M D
authors.initials: MD
authors.lastname: Lockshin
mesh_terms: D005260:Female; D006801:Humans; D015994:Incidence; D008180:Lupus Erythematosus, Systemic / Q000453:epidemiology*; D008396:Maryland / Q000453:epidemiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology*; D012107:Research Design