作者单位:
Community Chilcapamba, Chilcapamba, Province Imbabu, Ecuador
[1]
Hosp Sick Children, Dept Pediat, Toronto, ON, Canada
[2]
McGill Univ, Dept Family Med, Montreal, PQ H3A 2T5, Canada
[3]
Univ Toronto, St Michaels Hosp, Dept Family Med, Toronto, ON M5S 1A1, Canada
[4]
McGill Univ, Fac Med, Montreal, PQ H3A 2T5, Canada
[5]
发布时间
2017-04-06