000			01567 a2200505 4500
005			20250514044828.0
264		0	_c19940602
008			199406s 0 0 jpn d
022			_a0387-2793
040			_aNLM _beng _cNLM
100	1		_aImaizumi, Y
245	0	0	_a[[Perinatal mortality rates in single and multiple births, and the effects of maternal age, birthweight, and other factors on the perinatal mortality rates in Japan]]. _h[electronic resource]
260			_bJinko mondai kenkyu. [Journal of population problems] _cOct 1993
300			_a51-65 p. _bdigital
500			_aPublication Type: English Abstract; Journal Article
650	0	4	_aAge Factors
650	0	4	_aAsia
650	0	4	_aBiology
650	0	4	_aBirth Order
650	0	4	_aBirth Weight
650	0	4	_aBody Weight
650	0	4	_aDemography
650	0	4	_aDeveloped Countries
650	0	4	_aFamily Characteristics
650	0	4	_aFamily Relations
650	0	4	_aAsia, Eastern
650	0	4	_aFetal Death
650	0	4	_aFetus
650	0	4	_aGestational Age
650	0	4	_aInfant Mortality
650	0	4	_aJapan
650	0	4	_aMaternal Age
650	0	4	_aMortality
650	0	4	_aMultiple Birth Offspring
650	0	4	_aParents
650	0	4	_aPhysiology
650	0	4	_aPopulation
650	0	4	_aPopulation Characteristics
650	0	4	_aPopulation Dynamics
650	0	4	_aPregnancy
650	0	4	_aPregnancy Outcome
650	0	4	_aReproduction
650	0	4	_aSex Factors
773	0		_tJinko mondai kenkyu. [Journal of population problems] _gvol. 49 _gno. 3 _gp. 51-65
999			_c12149972 _d12149972