Frequency of twinning in California. Its relationship to maternal age, parity and race von Shipley, P W, Wray, J A, Hechter, H H, Arellano, M G, Borhant, N O

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Report of a ten-year follow-up study of the San Francisco Longshoremen von Borhani, Nemat O., Hechter, Hyman H., Breslow, Lester

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Report of a ten-year follow-up study of the San Francisco Longshoremen: Mortality from coronary heart disease and from all causes von Borhani, Nemat O., Hechter, Hyman H., Breslow, Lester

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FREQUENCY OF TWINNING IN CALIFORNIA1 von SHIPLEY, PAUL W., WRAY, JO ANN, HECHTER, HYMAN H., ARELLANO, MAX G., BORHANI, NEMAT O.

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FREQUENCY OF TWINNING IN CALIFORNIA von SHIPLEY, PAUL W., WRAY, JO ANN, HECHTER, HYMAN H., ARELLANO, MAX G., BORHANI, NEMAT O.

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