@article{H, author = {H., Zellweger}, title = {Familial aggregates of the 21-trisomy syndrome}, series = {Annals of the New York Academy of Science, Vol. 155 (1969), pp. 784-792.}, journal = {Annals of the New York Academy of Science, Vol. 155 (1969), pp. 784-792.}, language = {en} }