PT  - JOURNAL ARTICLE
AU  - Sergio Harari
AU  - Marc Humbert
TI  - Ultra-rare disease: an European perspective
AID  - 10.1183/16000617.0195-2020
DP  - 2020 Jun 30
TA  - European Respiratory Review
PG  - 200195
VI  - 29
IP  - 156
4099  - http://err.ersjournals.com/content/29/156/200195.short
4100  - http://err.ersjournals.com/content/29/156/200195.full
SO  - EUROPEAN RESPIRATORY REVIEW2020 Jun 30; 29