Criteria for Donation
	Method of blood	Apheresis donation		Whole blood donation
	donation	Plasmapheresis	Plateletpheresis	200mL	400mL
	Volume donated	300mL-600mL	< 400mL	200mL	400mL
	at one time	（by weight）
	Age	18-69*1	18-54	16-69*1	18-69*1
	Weight	>=45kg(men),　 >=40kg(women)			＞＝ 50kg
	blood specific gravity	>= 1.052 or	>= 1.052 or	>= 1.052 or	>= 1.053 or
	or	>= 12.0 g/dL	>= 12.0 g/dL	>= 12.0 g/dL	>= 12.5 g/dL
	Hemoglobin*2	(if red cell indices are within normal range, hemoglobin >= 11.5g/dL for women)
	Platelet count	-	>= 15x107/mL	-	-
			>= 60x107/mL
	Total donations/year	Counting one plateletpheresis donation as two, less than 24 times		<= 6 times(men)	<= 3 times(men)
				<= 4 times(women)	<= 2 times(women)
	Total volume of blood donated/year	-	-	<= 1,200mL(men)
				<= 800mL(women)
				including 200mL and 400mL donations
	*1：Donors between 65-70 years old can donate as long as they had donated between 60-64 years old.
	*2:At the Hokkaido Blood Center, male donors must have a hemoglobin level of 13.0 g/dL for a 200mL  donation or 13.5 g/dL for a 400mL donation in order to protect their health.
	Blood Donation Interval
	Method		Next time
			Plasmapheresis	Plateletpheresis	200mL	400mL
	Last time	200mL	³ 4 weeks
		400mL	>= 8 weeks		>= 12 weeks(men), >= 16 weeks(women)
		Plasmapheresis	>= 2 weeks		>= 2 weeks
		plateletpheresis	>= 2 weeks	>= 1 week*4
	* 4 weeks interval is required if you donate 4 times in 4weeks.