Robert T. Kambic

Using Population Segmentation to Provide Better Health Care for All: The “Bridges to Health” Model

Joanne Lynn, Barry M. Straube, Karen M. Bell et al. · Milbank Quarterly · 2007 · 167 citations

Public Affairs, Health Care Management, Health Policy +17

Adverse outcomes of planned and unplanned pregnancies among users of natural family planning: a prospective study.

Adenike Bitto, Ronald H. Gray, Joe Leigh Simpson et al. · American Journal of Public Health · 1997 · 52 citations

Medicine, Maternal Health, Obstetrics +12

Sex ratio associated with timing of insemination and length of the follicular phase in planned and unplanned pregnancies during use of natural family planning

Ronald H. Gray, Joe Leigh Simpson, Adenike Bitto et al. · Human Reproduction · 1998 · 52 citations · Full text

Medicine, Gynecology, Obstetrics +13

Assessment of the Medicare Quality Improvement Organization Program

William Rollow, Terry R. Lied, Paul McGann et al. · Annals of Internal Medicine · 2006 · 51 citations

Health Professions, Health Administration, Health Services Administration +17

Timing of conception and the risk of spontaneous abortion among pregnancies occurring during the use of natural family planning

Ronald H. Gray, Joe Leigh Simpson, Robert T. Kambic et al. · American Journal of Obstetrics and Gynecology · 1995 · 43 citations

Medicine, Gynecology, Obstetrics +9