Answers are grounded in this paper and cite their sources.
The data presented here support recommendations in international guidelines that both routes of administration should be continued for a minimum of 3 years. Gaps in the evidence remain regarding the long-term efficacy of immunotherapy for perennial rhinitis and studies performed in children.
No takes yet. Share an insight, caveat, or question.
Penagos et al. (2018) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: