D. Alan Johns
ORCID: 0000-0001-5357-9210
· 7 papers in corpus
article
2013
C19 steroids are converted to estrogens by aromatase P450 (P450arom). Aromatase expression in humans is regulated by use of tissue-specific promoters in the placenta (promoter I.1), adipose tissue (promoters I.4, I.3, and II), and gonads (p…
article
2012
Study objectiveTo estimate the incidence of and factors associated with hysterectomy subsequent to endometrial ablation.DesignRetrospective cohort study (Canadian Task Force classification II-2).SettingGynecology practice.PatientsWomen who …
article
2011
review
2007
We report a case of umbilical endometriosis externa and systematically review the literature regarding this finding. In our case report, a 47-year-old woman with cyclic umbilical bleeding, pelvic pain, and no previous umbilical surgery deve…
article
1999
ObjectiveTo investigate the efficacy and safety of intravaginal Crinone 8% (Columbia Research Laboratories, Miami. FL) versus IM progesterone for luteal phase support after IVF-ET.DesignProspective open trial with comparison to historical c…
article
1997
C19 steroids are converted to estrogens by aromatase P450 (P450arom). Aromatase expression in humans is regulated by use of tissue-specific promoters in the placenta (promoter I.1), adipose tissue (promoters I.4, I.3, and II), and gonads (p…
article
1993
Ovarian remnant syndrome occurs infrequently after oophorectomy, yet when present it can contribute greatly to pelvic discomfort. The syndrome may be difficult to diagnose, identify surgically, and treat without intraoperative or postoperat…