- bvf, slu, uppsala, sweden.5
- calif acad sci, dept microbiol, san francisco, ca 94118 usa.;univ calif berkeley, dept mol & cell biol, 229 stanley hall, berkeley, ca 94720 usa.5
- department of animal breeding and genetics, swedish university of agricultural sciences (slu), uppsala, sweden5
- department of biology, east carolina university, greenville, north carolina, usa5
- department of biology, indiana university, bloomington, indiana, usa5
- department of biology, north life sciences, san diego state university, san diego, california, usa5
- department of biology, university of rochester, rochester, new york, usa5
- department of biomedical sciences and veterinary public health, virology, swedish university of agricultural sciences (slu), uppsala, sweden5
- department of ecology, swedish university of agricultural sciences, uppsala, sweden5