diff --git a/Pipfile.lock b/Pipfile.lock
index 9470f45..0eccbfc 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -19,6 +19,10 @@
         "pubmed-bibtex": {
             "editable": true,
             "path": "."
+        },
+        "sanitized-package": {
+            "editable": true,
+            "path": "."
         }
     },
     "develop": {
@@ -27,6 +31,7 @@
                 "sha256:1efdf4e867d4d8ba4a9f6cf9ce07cd182c4c41de77f23814feb27ca93ca9d877",
                 "sha256:506daabe5edffb7e696ad82483ad0228245a9742ed7d2d8c9cdb31537decf9f6"
             ],
+            "markers": "python_full_version >= '3.6.2'",
             "version": "==2.9.3"
         },
         "attrs": {
@@ -34,6 +39,7 @@
                 "sha256:2d27e3784d7a565d36ab851fe94887c5eccd6a463168875832a1be79c82828b4",
                 "sha256:626ba8234211db98e869df76230a137c4c40a12d72445c45d5f5b716f076e2fd"
             ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==21.4.0"
         },
         "black": {
@@ -49,65 +55,65 @@
                 "sha256:353f466495adaeb40b6b5f592f9f91cb22372351c84caeb068132442a4518ef3",
                 "sha256:410e932b050f5eed773c4cda94de75971c89cdb3155a72a0831139a79e5ecb5b"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==8.0.3"
         },
         "coverage": {
+            "extras": [
+                "toml"
+            ],
             "hashes": [
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+                "sha256:78fbb2be068a13a5d99dce9e1e7d168db880870f7bc73f876152130575bd6167",
+                "sha256:7bff3a98f63b47464480de1b5bdd80c8fade0ba2832c9381253c9b74c4153c27",
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+                "sha256:9976fb0a5709988778ac9bc44f3d50fccd989987876dfd7716dee28beed0a9fa",
+                "sha256:9ad0a117b8dc2061ce9461ea4c1b4799e55edceb236522c5b8f958ce9ed8fa9a",
+                "sha256:9e3dd806f34de38d4c01416344e98eab2437ac450b3ae39c62a0ede2f8b5e4ed",
+                "sha256:9eb494070aa060ceba6e4bbf44c1bc5fa97bfb883a0d9b0c9049415f9e944793",
+                "sha256:9fde6b90889522c220dd56a670102ceef24955d994ff7af2cb786b4ba8fe11e4",
+                "sha256:9fff3ff052922cb99f9e52f63f985d4f7a54f6b94287463bc66b7cdf3eb41217",
+                "sha256:a06c358f4aed05fa1099c39decc8022261bb07dfadc127c08cfbd1391b09689e",
+                "sha256:a4f923b9ab265136e57cc14794a15b9dcea07a9c578609cd5dbbfff28a0d15e6",
+                "sha256:c5b81fb37db76ebea79aa963b76d96ff854e7662921ce742293463635a87a78d",
+                "sha256:d5ed164af5c9078596cfc40b078c3b337911190d3faeac830c3f1274f26b8320",
+                "sha256:d651fde74a4d3122e5562705824507e2f5b2d3d57557f1916c4b27635f8fbe3f",
+                "sha256:de73fca6fb403dd72d4da517cfc49fcf791f74eee697d3219f6be29adf5af6ce",
+                "sha256:e647a0be741edbb529a72644e999acb09f2ad60465f80757da183528941ff975",
+                "sha256:e92c7a5f7d62edff50f60a045dc9542bf939758c95b2fcd686175dd10ce0ed10",
+                "sha256:eeffd96882d8c06d31b65dddcf51db7c612547babc1c4c5db6a011abe9798525",
+                "sha256:f5a4551dfd09c3bd12fca8144d47fe7745275adf3229b7223c2f9e29a975ebda",
+                "sha256:fac0bcc5b7e8169bffa87f0dcc24435446d329cbc2b5486d155c2e0f3b493ae1"
             ],
-            "version": "==6.2"
+            "markers": "python_version >= '3.7'",
+            "version": "==6.3.1"
         },
         "importlib-metadata": {
             "hashes": [
                 "sha256:899e2a40a8c4a1aec681feef45733de8a6c58f3f6a0dbed2eb6574b4387a77b6",
                 "sha256:951f0d8a5b7260e9db5e41d429285b5f451e928479f19d80818878527d36e95e"
             ],
+            "markers": "python_version >= '3.7'",
             "version": "==4.10.1"
         },
         "iniconfig": {
@@ -122,6 +128,7 @@
                 "sha256:6f62d78e2f89b4500b080fe3a81690850cd254227f27f75c3a0c491a1f351ba7",
                 "sha256:e8443a5e7a020e9d7f97f1d7d9cd17c88bcb3bc7e218bf9cf5095fe550be2951"
             ],
+            "markers": "python_version < '4.0' and python_full_version >= '3.6.1'",
             "version": "==5.10.1"
         },
         "lazy-object-proxy": {
@@ -164,6 +171,7 @@
                 "sha256:fccdf7c2c5821a8cbd0a9440a456f5050492f2270bd54e94360cac663398739b",
                 "sha256:fd45683c3caddf83abbb1249b653a266e7069a09f486daa8863fb0e7496a9fdb"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==1.7.1"
         },
         "mccabe": {
@@ -211,6 +219,7 @@
                 "sha256:dd47c42927d89ab911e606518907cc2d3a1f38bbd026385970643f9c5b8ecfeb",
                 "sha256:ef103e05f519cdc783ae24ea4e2e0f508a9c99b2d4969652eed6a2e1ea5bd522"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==21.3"
         },
         "pathspec": {
@@ -225,6 +234,7 @@
                 "sha256:1d7385c7db91728b83efd0ca99a5afb296cab9d0ed8313a45ed8ba17967ecfca",
                 "sha256:440633ddfebcc36264232365d7840a970e75e1018d15b4327d11f91909045fda"
             ],
+            "markers": "python_version >= '3.7'",
             "version": "==2.4.1"
         },
         "pluggy": {
@@ -232,6 +242,7 @@
                 "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159",
                 "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==1.0.0"
         },
         "py": {
@@ -239,6 +250,7 @@
                 "sha256:51c75c4126074b472f746a24399ad32f6053d1b34b68d2fa41e558e6f4a98719",
                 "sha256:607c53218732647dff4acdfcd50cb62615cedf612e72d1724fb1a0cc6405b378"
             ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==1.11.0"
         },
         "pylint": {
@@ -262,15 +274,16 @@
                 "sha256:18ee9022775d270c55187733956460083db60b37d0d0fb357445f3094eed3eea",
                 "sha256:a6c06a88f252e6c322f65faf8f418b16213b51bdfaece0524c1c1bc30c63c484"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==3.0.7"
         },
         "pytest": {
             "hashes": [
-                "sha256:131b36680866a76e6781d13f101efb86cf674ebb9762eb70d3082b6f29889e89",
-                "sha256:7310f8d27bc79ced999e760ca304d69f6ba6c6649c0b60fb0e04a4a77cacc134"
+                "sha256:42901e6bd4bd4a0e533358a86e848427a49005a3256f657c5c8f8dd35ef137a9",
+                "sha256:dad48ffda394e5ad9aa3b7d7ddf339ed502e5e365b1350e0af65f4a602344b11"
             ],
             "index": "pypi",
-            "version": "==6.2.5"
+            "version": "==7.0.0"
         },
         "pytest-cov": {
             "hashes": [
@@ -280,11 +293,20 @@
             "index": "pypi",
             "version": "==3.0.0"
         },
+        "setuptools": {
+            "hashes": [
+                "sha256:a4dc3af29a67e7a45620aba43dde2c1af2dd6bc49726d78168f0cc6c4fb0c01b",
+                "sha256:c9097cbcdefe88a64da966a764f2d95feb1cfaff77cc304528a23cefe3359d9a"
+            ],
+            "markers": "python_version >= '3.7'",
+            "version": "==60.7.1"
+        },
         "toml": {
             "hashes": [
                 "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b",
                 "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"
             ],
+            "markers": "python_version >= '2.6' and python_version not in '3.0, 3.1, 3.2, 3.3'",
             "version": "==0.10.2"
         },
         "tomli": {
@@ -292,6 +314,7 @@
                 "sha256:05b6166bff487dc068d322585c7ea4ef78deed501cc124060e0f238e89a9231f",
                 "sha256:e3069e4be3ead9668e21cb9b074cd948f7b3113fd9c8bba083f48247aab8b11c"
             ],
+            "markers": "python_version >= '3.6'",
             "version": "==1.2.3"
         },
         "typed-ast": {
@@ -316,7 +339,6 @@
                 "sha256:ca9e8300d8ba0b66d140820cf463438c8e7b4cdc6fd710c059bfcfb1531d03fb",
                 "sha256:de4ecae89c7d8b56169473e08f6bfd2df7f95015591f43126e4ea7865928677e"
             ],
-            "index": "pypi",
             "markers": "python_version < '3.8'",
             "version": "==1.5.1"
         },
@@ -382,6 +404,7 @@
                 "sha256:f9c51d9af9abb899bd34ace878fbec8bf357b3194a10c4e8e0a25512826ef056",
                 "sha256:fd76c47f20984b43d93de9a82011bb6e5f8325df6c9ed4d8310029a55fa361ea"
             ],
+            "markers": "python_version >= '2.7' and python_version not in '3.0, 3.1, 3.2, 3.3, 3.4'",
             "version": "==1.13.3"
         },
         "zipp": {
@@ -389,6 +412,7 @@
                 "sha256:9f50f446828eb9d45b267433fd3e9da8d801f614129124863f9c51ebceafb87d",
                 "sha256:b47250dd24f92b7dd6a0a8fc5244da14608f3ca90a5efcd37a3b1642fac9a375"
             ],
+            "markers": "python_version >= '3.7'",
             "version": "==3.7.0"
         }
     }