Reliability of modern technology as aid to natural family planning for spacing pregnancy von Saporosi, A., Giacchi, E., Squintani, M.C., Menini, E., Cappella, A., Brown, J.B.

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Update on ovulation and fertility monitoring by cervical mucus symptom and urinary hormone assay von Saporosi, A., Giacchi, E., Squintani, M.C., Merola, A., Mancini, A., Cappella, A., Brown, J.B.

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