POWER OF ATTORNEY
Know all by these presents that the undersigned hereby constitutes and
appoints each of Malissa Daniels, Thomas Rosedale and Kathleen R. Henry, signing
singly, as the undersigned's true and lawful attorney-in-fact to:
(1) execute, for and on behalf of the undersigned, in the
undersigned's capacity as a beneficial owner, joint actor, or
similar capacity of securities which are registered under or
subject to the laws, rules or regulations of any jurisdiction,
any form, schedule, report, press release or other similar
document as may be required by such jurisdiction's laws, rules
or regulations, and any amendments thereto, in accordance with
such jurisdiction's laws, rules or regulations, including
without limitation Forms 3, 4 and 5 in accordance with Section
16(a) of the Securities Exchange Act of 1934 (the "Exchange
Act") and the rules thereunder, Schedule 13D or 13G in
accordance with Section 13(d) of the Exchange Act and the rules
thereunder and a Form ID, Uniform Application for Access Codes
to File on Edgar;
(2) do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and
execute any such form, schedule, report, press release or other
similar document, and timely file such form, schedule, report,
press release or other similar document with the appropriate
governmental authority or regulatory body of the relevant
jurisdiction and any stock exchange or similar authority; and
(3) take any other action of any type whatsoever in connection with
the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally
required by, the undersigned, it being understood that the
documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such
form and shall contain such terms and conditions as such
attorney-in-fact may approve in such attorney-in-fact's
discretion.
The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted. The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming any of the undersigned's responsibilities to
comply with the securities laws, rules or regulations of any particular
jurisdiction.
This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file forms, schedules, press releases or
similar documents with respect to the undersigned's holdings of and transactions
in securities which are registered under the laws, rules or regulations of any
jurisdiction, unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 19th day of October, 2021.
SV7 IMPACT MEDICINE FUND LP
By: SV7 (IMF) GP LLP, its General Partner
By: /s/ James Costine
Name: James Costine
Title: Authorised Member
