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Authors: BHATNAGAR S BURGER HG DELGADO HL DADA OA GROSS BA HOFVANDER Y LAVIN PA GUANGHUA T VANLOOK PFA VONHERTZEN H AYENI O GLASIER A PINOL APY CHEVROT A VUCUREVIC M NAGI VS HOWIE PW KENNEDY KI THALABARD JC LABBOK M

Citation: S. Bhatnagar et al., THE WORLD-HEALTH-ORGANIZATION MULTINATIONAL STUDY OF BREAST-FEEDING AND LACTATIONAL AMENORRHEA - I - DESCRIPTION OF INFANT-FEEDING PATTERNSAND OF THE RETURN OF MENSES, Fertility and sterility, 70(3), 1998, pp. 448-460

Authors: BHATNAGAR S BURGER HG DELGADO HL DADA OA GROSS BA HOFVANDER Y LAVIN PA GUANGHUA T VANLOOK PFA VONHERTZEN H AYENI O GLASIER A PINOL APY VUCUREVIC M NAGI VS HOWIE PW KENNEDY KI THALABARD JC LABBOK M

Citation: S. Bhatnagar et al., THE WORLD-HEALTH-ORGANIZATION MULTINATIONAL STUDY OF BREAST-FEEDING AND LACTATIONAL AMENORRHEA - II - FACTORS ASSOCIATED WITH THE LENGTH OFAMENORRHEA, Fertility and sterility, 70(3), 1998, pp. 461-471