A Prospective Cohort Study of Menstrual Characteristics and Time to Pregnancy

A successful implementation of e-epidemiology: the Danish pregnancy planning study ‘Snart-Gravid’

(2010) Krista F. Huybrechts et al.   EUROPEAN JOURNAL OF EPIDEMIOLOGY

Reliability of Retrospectively Assessed Categorical Menstrual Cycle Length Data

(2009) Annette M. Bachand et al.   ANNALS OF EPIDEMIOLOGY

An internet-based prospective study of body size and time-to-pregnancy

(2009) L. A. Wise et al.   HUMAN REPRODUCTION

Self-selection and bias in a large prospective pregnancy cohort in Norway

(2009) Roy M. Nilsen et al.   PAEDIATRIC AND PERINATAL EPIDEMIOLOGY

Randomized Trial of Questionnaire Length

(2008) Kenneth J. Rothman et al.   EPIDEMIOLOGY

Cohort Profile: The Danish Web-based Pregnancy Planning Study--'Snart-Gravid'

(2008) E. M Mikkelsen et al.   INTERNATIONAL JOURNAL OF EPIDEMIOLOGY