Template:BakerHookSeveringhaus1944 table 1

Table 1 - Specimens studied
Case	Type of Operation	Decidua (D) Villus (V)	Menstrual age (weeks)	Est. Menstrual Age (weeks)
1	Therapeutic abortion	D	6—8
2	Hysterectomy	D V	11	10.7 ?
3	Hysterectomy	D V	20
4	Therapeutic abortion	D V	12.5
5	Hysterectomy	D V	17 ?	15.7
6	Therapeutic abortion	D V	7
7	Therapeutic abortion	V	13	14 ?
8	Spontaneous abortion	D	14.2	14 ?
9	Spontaneous abortion	V	13	14 ?
10	(Tubal pregnancy)	D V	13	?
11	Spontaneous abortion	D V	10	14 ?
12	Hysterectomy	D V	15.1	13.5
13	Hysterectomy	D V		14.1
14.	Subtotal Hysterectomy	D V	14.2	13.5
15	(Ectopic. pregnancy)	D V		12.4
16	Therapeutic abortion	D V		15.5
17	Hysterectomy	V	10	9.7
18	Therapeutic abortion	D V	8
19	Delivery	V	full term
20	Delivery	V	full term
21	Delivery	V	full term
22	Delivery	V	full term
23	Therapeutic abortion	D V
24	Therapeutic abortion	D V		8 (Dr.)
25	Therapeutic abortion	D		6 (Dr.)
26	Therapeutic abortion	D V	12.7
27	Therapeutic abortion	D V	7
28	Therapeutic abortion	V	15 ?	14.7
29	Therapeutic abortion		13	13.2
30	Therapeutic abortion	V	6-9
31	Therapeutic abortion	V	12
32	Therapeutic abortion	V	8
33	Delivery	V	29
34	(Hydatidiform mole)	V
EH 47 4	Hysterectomy	D V		10.4
EH 78		V		9.6
EH 82		V		11.1
EH 102	Hysterectomy	V		9,0
EH 138	Hysterectomy	V		8.4
EH 1417	Hysterectomy	V	7	9.3
EH 173	Hysterectomy	D		13.3
EH 181	Spontaneous abortion	V		15.8
EH 265	(TubaI pregnancy)	V		11.1

• Except when estimated by the doctor during.the operation, “(Dr.)”, the menstrual age of the fetus was determined from the data of Mall on the hasie of the crown-rump length, Mall (’18) and Keibel and Mall(’10), p. 199.
• Following mechanical injury to fetus.
• Because of threatened spontaneous abortion.
• The Specimens designated by EH are from the University of Michigan Embryological Collection.