共 50 条
- [1] CHILD SURVIVAL AND INTERVALS BETWEEN PREGNANCIES IN GUAYAQUIL, ECUADOR POPULATION STUDIES-A JOURNAL OF DEMOGRAPHY, 1975, 29 (03): : 479 - 496
- [2] EPIDEMIOLOGY OF ROTAVIRUS IN GUAYAQUIL, ECUADOR AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE, 1986, 35 (02): : 372 - 375
- [7] Notes on the Republic of Ecuador and on the City of Guayaquil PETERMANNS MITTEILUNGEN, 1902, 48 (05): : 37 - 37
- [10] The interval between pregnancies and the outcome of subsequent births NEW ENGLAND JOURNAL OF MEDICINE, 1999, 340 (08): : 643 - 644